MFE 201 Lecture Notes - Lecture 44: Saw, Nyishi (Tribe), Bandsaw
31 Mar 2016
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Document Summary
Broaching is the material removal through the use of a broach. A broach has successive teeth that are progressively larger and take a bit more of the workpiece with each tooth. Both external and internal geometries can be broached. This is a very productive process as the entire geometry is generated by one pass of the broach. Relationship of workpiece to tool for forming chips during broaching. (a) internal broaching. (b) Terminology for a pull-type internal broach used for enlarging long holes. This happens to be a broach for a round hole. Broaching will generally produce better quality holes than drilling. The root diameter is the diameter of the existing hole. The roughening teeth will take larger amounts of material and the nishing teeth will provide the surface nish and nal dimension. The semi nishing teeth are transition between the two other sections.
