Pot broaching is considered an external method because it doesn’t push the tool through the entire work-piece to form a hole, but rather alters the outside edges. It is considered the inverse of an internal broach and can only be used on cylindrically shaped work-pieces. Pot broaches get their name from the hollow fixture that holds the broach tools. It is a pot-like casing with a hole in the middle that holds multiple broaches over the entire length. Read More…
Leading Manufacturers
Isotech, Inc.
Hatfield, PA | 800-314-3332Since 1982, Isotech has been a leader in the broaching industry. You can trust the accuracy of these solutions, and the experts at Isotech are always available to assist you with your needs. Feel free to contact them today to learn more information!
Toolamation, Inc.
Kenosha, WI | 262-764-3503Toolamation, Inc. specializes in complete high-volume production broaching services. We have the capacity to produce many millions of parts annually. On-site tumbling, deburring, & sharp edge removal services. Fast turn-around. We also offer a range of screw machine tooling products.
AmTech International
Freehold, NJ | 732-972-5400AmTech International is a leading manufacturer in the broaching industry. Our broaching machine production has a capability range from 2T-50T and up to 72? of stroke. We serve a variety of industries, including automotive, power transmission applications, and electronics. Metals that we use for broaching include stainless steel, brass, copper, and carbon steel.
Precision Gears, Inc.
Pewaukee, WI | 262-542-2461For over 100 years, Precision Gears, Inc. has been a leader in the broaching industry. We can work with widths from .063” up to 1”. Precision Gears has a wide variety of materials, including ductile iron, carbon steel, aluminum, and alloy steel. Industries we serve include medical, packaging, construction, and machinery.
Pioneer Broach Company
Los Angeles, CA | 800-621-1945Pioneer Broach Company is premier vendor of quality rotary broaching cutting tools. We specialize in custom spline, serration and hexalobular shaped rotary or wobble broaches, and also offer a complete line of standard hex and square rotary broach tools. Our new rotary broaching toolholder is designed for all modern CNC machines, mills and lathes.
Pot Broaching - Avon Broach and Production CompanyThis process has largely replaced hobbing, which is a milling process that fabricates gears, splines and sprockets.
Pot Broaching - Avon Broach and Production CompanyPot broaching requires complex tooling and fixtures, meaning it is a rare process, but the main method of manufacturing gears that have external teeth splines cut into their outside edges. They are also able to cut involute and straight splines, as well as external flats and slots. Pot broaching is done on vertical machines and is often an automated process.
This method of broaching gets its name from the fixture where the broaches are mounted inside. The tools are arranged in the hollow holder, which resembles a pot, and the tool assembly passes over the work-piece to all of its external surfaces. The broach is usually held stationary while one or more work-pieces are continuously pushed into the hollow fixture and through the linear broach tools.
These broaching machines have individual formed broach inserts called sticks, multiple ring broaches or a combination of both types. Pot broaching is often used for spiral broaching, where the part is turned continuously through a spiral-shaped tool in order to produce external threading on fasteners like screws. There are three types of broaching tools that have an internal cutting tool configuration-ring, stick or a combination of both.
When single or multiple work-pieces are pulled or pushed through the bore (hole) of the pot broach, which doesn't ever move, the tools alter their outside diameters. The broach tools must be sized according to the design of the work-piece.
