{"id":4936,"date":"2024-07-12T09:04:09","date_gmt":"2024-07-12T09:04:09","guid":{"rendered":"https:\/\/broachingmach.com\/?p=4936"},"modified":"2024-08-09T07:45:10","modified_gmt":"2024-08-09T07:45:10","slug":"how-to-broaches-design","status":"publish","type":"post","link":"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/","title":{"rendered":"Step by Step Guide to Broach Design for Beginners"},"content":{"rendered":"<p><\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<div class=\"ez-toc-title\" style=\"cursor:inherit\">\ubaa9\ucc28<\/div>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\ubaa9\ucc28 \ud1a0\uae00\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\ud1a0\uae00<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#Broach_Tool_Nomencluture\" >Broach Tool Nomencluture<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#Pull_End\" >Pull End<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#Front_Pilot_Broaching\" >Front Pilot Broaching<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#Roughing_Teeth\" >Roughing Teeth<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#Polishing_Teeth\" >Polishing Teeth<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#Rear_Pilot_and_Follower_Rest\" >Rear Pilot and Follower Rest<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#Land\" >Land<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#Pitch\" >Pitch<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#Dental_height\" >Dental height<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#Broach_Terminology\" >Broach Terminology<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#How_To_Design_A_Broach\" >How To Design A Broach?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#1Determine_Processing_Requirements\" >1.Determine Processing Requirements<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#2_Select_Broach_Type\" >2. Select Broach Type<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#3_Determine_Broach_Parameters\" >3. Determine Broach Parameters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#4_Design_Tooth_Shape_And_Size\" >4. Design Tooth Shape And Size<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#5_Determine_Chip_Flute_Shape_And_Size\" >5. Determine Chip Flute Shape And Size<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#6_Design_The_Broach_Neck_Transition_Taper_And_Shank\" >6. Design The Broach Neck, Transition Taper And Shank<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#7_Select_Broach_Material\" >7. Select Broach Material<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#8_Consider_Broach_Calibration_And_Fine_Cutting\" >8. Consider Broach Calibration And Fine Cutting<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#9_Strength_Check\" >9. Strength Check<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#10_Draw_Broach_Working_Diagram\" >10. Draw Broach Working Diagram<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#11_Develop_Manufacturing_Processes\" >11. Develop Manufacturing Processes<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#Broach_Tool_Design\" >Broach Tool Design<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#What_Is_The_General_Range_Of_Tooth_Lift_For_Broaches\" >What Is The General Range Of Tooth Lift For Broaches?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#How_To_Adjust_The_Tooth_Lift_Of_The_Broach\" >How To Adjust The Tooth Lift Of The Broach?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#1_Change_The_Grinding_Process_Of_Broaches\" >1. Change The Grinding Process Of Broaches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#2_Redesign_And_Manufacture_Broaches\" >2. Redesign And Manufacture Broaches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#3_Adjust_Broaching_Process_Parameters\" >3. Adjust Broaching Process Parameters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#4_Using_Adjustable_Broach_Device\" >4. Using Adjustable Broach Device<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/broachingmach.com\/ko\/how-to-broaches-design\/#5_Replace_Broach_Teeth\" >5. Replace Broach Teeth<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Broach_Tool_Nomencluture\"><\/span>Broach Tool Nomencluture<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"334\" src=\"https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-7-1024x334.png\" alt=\"\" class=\"wp-image-5087\" srcset=\"https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-7-1024x334.png 1024w, https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-7-300x98.png 300w, https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-7-768x251.png 768w, https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-7.png 1090w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe title=\"Nomenclature of Broach Design of Pull type Broaching Tool Diagram and its Application\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/oWy77URc_h4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pull_End\"><\/span>Pull End<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The pull end is designed to connect the broach to the broaching machine using the puller head.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Front_Pilot_Broaching\"><\/span>Front Pilot Broaching<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>This aligns the broach precisely in the hole that has to be completed, right before the procedure begins.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Roughing_Teeth\"><\/span>Roughing Teeth<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>These cutting blades are designed to efficiently remove a significant amount of material during the cutting process. Increasing the amount of material removed results in a worse quality surface finish, but it also speeds up the procedure.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Polishing_Teeth\"><\/span>Polishing Teeth<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>These cutting blades are used to remove tiny amounts of material. These tools are utilized for the precise size and final polishing of surfaces.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Rear_Pilot_and_Follower_Rest\"><\/span>Rear Pilot and Follower Rest<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>This is an auxiliary device used in conjunction with a broach to facilitate the completion of the broaching process.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Land\"><\/span>Land<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The flank face width of the broach refers to the measurement of its breadth. Typically, it is somewhat inclined to provide a relief angle to the flank face of the broach.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pitch\"><\/span>Pitch<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Pitch refers to the measurement of the distance between two matching places on consecutive teeth of a broach. Typically, the pitch of the finishing teeth on a broach is less than that of the rough cutting teeth.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Dental_height\"><\/span>Dental height<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>The height of the roughing and finishing teeth progressively increases from the shank to the finishing teeth. The increment in question is referred to as the cut per tooth, and its value is contingent upon the material being subjected to machining. Typically, the amount of material removed per tooth ranges from 0.01 to 0.2 mm for the finishing teeth, and it can up to 0.2 mm for the cutting teeth.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Broach_Terminology\"><\/span>Broach Terminology<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Front pilot: <\/strong>When using an internal pull broach, both the pull end and the front pilot pass through the beginning hole. The pull end is then secured onto the broaching machine&#8217;s pull head. The front pilot ensures that the tool is properly axially aligned with the beginning hole and acts as a check on the starting hole size.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Length: T<\/strong>he amount of stock to be removed determines the length of a broach tool or string of tools, which is limited by the machine stroke.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Rear pilot: <\/strong>The rear pilot keeps the tool aligned as the final finish teeth pass through the workpiece hole. On round tools, the diameter of the rear pilot is somewhat less than that of the finish teeth.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cutting teeth: <\/strong>Broach teeth are often separated into three portions running the length of the tool: roughing teeth, semi-finishing teeth, and finishing teeth. The initial roughing tooth is proportionally the smallest on the instrument. The successive teeth gradually grow in size, culminating with the first completing tooth. The difference in height between each tooth, known as tooth rise, is often larger during the roughing part and smaller along the semi-finishing region. Each finishing tooth is the same size. The face is ground using a hook or face angle dictated on the workpiece material. For example, soft steel workpieces often require larger hook angles, whereas hard or brittle steel components demand lower hook angles.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tooth land: <\/strong>The land protects the cutting edge from pressures. A modest clearance or back-off angle is ground into the lands to prevent friction. A back-off angle is used to alleviate the entire area when roughing and semi-finishing teeth. When completing teeth, a portion of the area immediately beyond the cutting edge is frequently left straight so that repeated sharpening (by grinding the face of the tooth) does not change the tooth size.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tooth pitch: <\/strong>The spacing between teeth, or pitch, is regulated by the length of the cut and modified by the workpiece material. To handle a higher chip load, roughing teeth may need to have a somewhat big pitch. Semi-finishing teeth may have a narrower pitch to shorten the total length of the broach tool. Pitch is calculated such that two or more teeth can cut at the same time. This keeps the tool from wandering or chattering.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Tooth gullet: <\/strong>The depth of the tooth gullet is proportional to the tooth rise, pitch, and workpiece material. The tooth root radius is normally built such that chips wrap snugly within themselves, taking up as little space as possible.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chip load:<\/strong> As each tooth penetrates the workpiece, it cuts a specific thickness of material. The set chip length and thickness generated by broaching result in a chip load that is determined by the broach tool&#8217;s design and feedrate.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chipbreakers:<\/strong> Notches, known as chipbreakers, are used on broach tools to reduce chip packing and enable chip removal. The chipbreakers are ground into the broach&#8217;s roughing and semi-finishing teeth, which are parallel to the tool axis. Chipbreakers on alternate teeth are staggered, with one set followed by a cutting edge. The finishing teeth conclude the work. Round broaching tools require chipbreakers; without them, the tools would create ring-shaped chips that would wedge into the tooth gullets and finally shatter the tool.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Shear angle: <\/strong>Broach designers may position broach teeth at a shear angle to increase surface quality and decrease tool chatter. When two neighboring surfaces are cut concurrently, the shear angle plays a crucial role in transporting chips away from the crossing corner and preventing chip crowding at the cutting teeth junction.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Side relief:<\/strong> When broaching slots, the tool is confined by the slot during the cutting process and must transport the chips created along the whole length of the workpiece. Without clearance, the sides of the broach teeth will scrape against the sides of the slot, causing fast tool wear. Grinding a single relief angle on both sides of each tooth achieves this. As a result, just a small piece of the tooth near the cutting edge, known as the side land, may rub against the slot. The same procedure is used for one-sided corner cuts and spline broaches.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_To_Design_A_Broach\"><\/span>How To Design A Broach?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Designing a broach requires comprehensive consideration of many factors. The following are the general design steps and key points:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1Determine_Processing_Requirements\"><\/span>1.Determine Processing Requirements<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Clarify the shape, size, accuracy requirements and material properties of the parts to be processed.<\/li>\n\n\n\n<li>Understand broaching allowances, surface roughness requirements, etc.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Select_Broach_Type\"><\/span>2. Select Broach Type<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Select the corresponding broach type according to the shape of the part (such as round hole, spline hole, rectangular hole, etc.), such as round hole broach, spline broach, etc.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Determine_Broach_Parameters\"><\/span>3. Determine Broach Parameters<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Calculate the broaching allowance and distribute it reasonably to each tooth.<\/li>\n\n\n\n<li>Determine the amount of tooth lift and select it within an appropriate range based on the factors mentioned earlier.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Design_Tooth_Shape_And_Size\"><\/span>4. Design Tooth Shape And Size<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Including rake angle, relief angle, blade width, etc.<\/li>\n\n\n\n<li>Ensure that the cutter teeth have good cutting performance and strength.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Determine_Chip_Flute_Shape_And_Size\"><\/span>5. Determine Chip Flute Shape And Size<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The shape (such as linear, arc, etc.) and size of the chip flute must be able to accommodate chips and ensure smooth discharge of chips.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Design_The_Broach_Neck_Transition_Taper_And_Shank\"><\/span>6. Design The Broach Neck, Transition Taper And Shank<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The neck is used to connect the working part and the shank, and the transition taper facilitates the broach&#8217;s entry into the workpiece.<\/li>\n\n\n\n<li>The handle should match the chuck of the broaching machine.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_Select_Broach_Material\"><\/span>7. Select Broach Material<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High speed steel, cemented carbide, etc. are usually selected according to the processing materials and cutting conditions.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"8_Consider_Broach_Calibration_And_Fine_Cutting\"><\/span>8. Consider Broach Calibration And Fine Cutting<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Calibration teeth are used to correct dimensional deviations caused by cutting deformation and tool wear.<\/li>\n\n\n\n<li>Precision cutting of teeth ensures final machining accuracy.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"9_Strength_Check\"><\/span>9. Strength Check<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Conduct strength checks on key parts of the broach (such as teeth, neck, etc.) to ensure that they will not break or be excessively deformed during the broaching process.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"10_Draw_Broach_Working_Diagram\"><\/span>10. Draw Broach Working Diagram<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Including the overall structure of the broach, dimensions of each part, tolerance marking, technical requirements, etc.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"11_Develop_Manufacturing_Processes\"><\/span>11. Develop Manufacturing Processes<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Determine the manufacturing process route of the broach, including heat treatment, grinding, sharpening and other processes.<\/li>\n<\/ul>\n\n\n\n<p>In short, broach design is a complex process that requires the comprehensive use of mechanical manufacturing technology, material mechanics, cutting principles and other aspects of knowledge, as well as optimization and improvement based on actual production experience.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Broach_Tool_Design\"><\/span>Broach Tool Design<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>For defining the geometry of a broach an internal type is shown below. Note that the geometries of other broaches are similar.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"659\" src=\"https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-8-1024x659.png\" alt=\"\" class=\"wp-image-5088\" srcset=\"https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-8-1024x659.png 1024w, https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-8-300x193.png 300w, https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-8-768x494.png 768w, https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-8.png 1150w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"376\" src=\"https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-11-1024x376.png\" alt=\"\" class=\"wp-image-5095\" srcset=\"https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-11-1024x376.png 1024w, https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-11-300x110.png 300w, https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-11-768x282.png 768w, https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-11-1536x565.png 1536w, https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-11.png 1627w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"300\" src=\"https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-12.png\" alt=\"\" class=\"wp-image-5096\" srcset=\"https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-12.png 600w, https:\/\/broachingmach.com\/wp-content\/uploads\/2024\/07\/image-12-300x150.png 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><em>P<\/em>&nbsp;= pitch<\/li>\n\n\n\n<li><em>RPT<\/em>&nbsp;= rise per tooth<\/li>\n\n\n\n<li><em>n<\/em><sub>r<\/sub>&nbsp;= number of roughing teeth<\/li>\n\n\n\n<li><em>n<\/em><sub>s<\/sub>&nbsp;= number of semi-finishing teeth<\/li>\n\n\n\n<li><em>n<\/em><sub>f<\/sub>&nbsp;= number of finishing teeth<\/li>\n\n\n\n<li><em>t<\/em><sub>r<\/sub>&nbsp;= RPT for the roughing teeth<\/li>\n\n\n\n<li><em>t<\/em><sub>s<\/sub>&nbsp;= RPT for the semi-finishing teeth<\/li>\n\n\n\n<li><em>t<\/em><sub>f<\/sub>&nbsp;= RPT for the finishing teeth<\/li>\n\n\n\n<li><em>L<\/em><sub>s<\/sub>&nbsp;= Shank length<\/li>\n\n\n\n<li><em>L<\/em><sub>RP<\/sub>&nbsp;= Rear pilot length<\/li>\n\n\n\n<li><em>D<\/em><sub>1<\/sub>&nbsp;= Diameter of the tooth tip<\/li>\n\n\n\n<li><em>D<\/em><sub>2<\/sub>&nbsp;= Diameter of the tooth root<\/li>\n\n\n\n<li><em>D<\/em>&nbsp;= Depth of a tooth (0.4P)<\/li>\n\n\n\n<li><em>L<\/em>&nbsp;= Land (behind the cutting edge) (0.25P)<\/li>\n\n\n\n<li><em>R<\/em>&nbsp;= Radius of the gullet (0.25P)<\/li>\n\n\n\n<li><em>\u03b1<\/em>&nbsp;= Hook angle or&nbsp;<a href=\"https:\/\/en.wikipedia.org\/wiki\/Rake_angle\" target=\"_blank\" rel=\"noopener\">rake angle<\/a><\/li>\n\n\n\n<li><em>\u03b3<\/em>&nbsp;= Back-off angle or&nbsp;<a href=\"https:\/\/en.wikipedia.org\/w\/index.php?title=Clearance_angle&amp;action=edit&amp;redlink=1\" target=\"_blank\" rel=\"noopener\">clearance angle<\/a><\/li>\n\n\n\n<li><em>L<\/em><sub>w<\/sub>&nbsp;= Length of the workpiece (not shown)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_The_General_Range_Of_Tooth_Lift_For_Broaches\"><\/span>What Is The General Range Of Tooth Lift For Broaches?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Broach tooth lifts typically range from 0.005 mm to 0.03 mm.<br>However, the specific tooth lift range will be affected by many factors, such as the properties of the material being processed (hardness, toughness, etc.), broaching accuracy requirements, the material and size of the broach, etc.<\/p>\n\n\n\n<p>For materials with lower hardness and higher toughness, the tooth lift may be relatively large, such as 0.02 mm to 0.03 mm. For machining tasks with higher hardness and higher precision requirements, the tooth lift may be 0.005 mm to 0.015 mm.<\/p>\n\n\n\n<p>It should be noted that this is only a rough range. In actual applications, the appropriate tooth lift needs to be determined based on specific processing conditions and requirements.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_To_Adjust_The_Tooth_Lift_Of_The_Broach\"><\/span>How To Adjust The Tooth Lift Of The Broach?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>You can adjust the tooth lift of the broach through the following methods:<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Change_The_Grinding_Process_Of_Broaches\"><\/span>1. Change The Grinding Process Of Broaches<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>When sharpening a broach, adjust the tooth lift by controlling the depth and frequency of grinding.<\/li>\n\n\n\n<li>Use high-precision grinders and suitable grinding wheels to achieve precise grinding control.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Redesign_And_Manufacture_Broaches\"><\/span>2. Redesign And Manufacture Broaches<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If the existing broach tooth lift does not meet the needs, the broach may need to be redesigned and manufactured.<\/li>\n\n\n\n<li>In the design stage, the appropriate tooth lift is determined according to the processing requirements, and the processing accuracy is strictly controlled during the manufacturing process.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Adjust_Broaching_Process_Parameters\"><\/span>3. Adjust Broaching Process Parameters<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>For example, appropriately reducing the broaching speed or reducing the feed amount can reduce the actual tooth lift to a certain extent.<\/li>\n\n\n\n<li>However, this method may affect production efficiency and needs to be considered comprehensively.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Using_Adjustable_Broach_Device\"><\/span>4. Using Adjustable Broach Device<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Some advanced broaching machines are equipped with an adjustable broach clamping device, which can fine-tune the position and angle of the broach within a certain range, thereby indirectly adjusting the tooth lift.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Replace_Broach_Teeth\"><\/span>5. Replace Broach Teeth<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>For broaches with a modular design, tooth sections with different tooth lifts can be replaced.<\/li>\n<\/ul>\n\n\n\n<p>When adjusting the broach tooth lift, it is necessary to operate with caution and conduct testing and verification based on actual processing conditions to ensure that the adjusted tooth lift can meet the requirements of processing quality and efficiency.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Broach Tool Nomencluture Pull End The pull end is designed to connect the broach to the broaching machine using the [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[23],"tags":[],"class_list":["post-4936","post","type-post","status-publish","format-standard","hentry","category-broaching"],"_links":{"self":[{"href":"https:\/\/broachingmach.com\/ko\/wp-json\/wp\/v2\/posts\/4936","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/broachingmach.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/broachingmach.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/broachingmach.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/broachingmach.com\/ko\/wp-json\/wp\/v2\/comments?post=4936"}],"version-history":[{"count":10,"href":"https:\/\/broachingmach.com\/ko\/wp-json\/wp\/v2\/posts\/4936\/revisions"}],"predecessor-version":[{"id":5235,"href":"https:\/\/broachingmach.com\/ko\/wp-json\/wp\/v2\/posts\/4936\/revisions\/5235"}],"wp:attachment":[{"href":"https:\/\/broachingmach.com\/ko\/wp-json\/wp\/v2\/media?parent=4936"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/broachingmach.com\/ko\/wp-json\/wp\/v2\/categories?post=4936"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/broachingmach.com\/ko\/wp-json\/wp\/v2\/tags?post=4936"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}