Broaching/

Vertical Broaching

Vertical broaching is when a hydraulic cutting tool is used to cut holes in metal, wood, and plastic materials. Both soft metals, such as aluminum and copper, and hard metals such as stainless steel are broached, although the soft metals are used more often than the hard. There are two different kinds of vertical broaching: internal broaches, which are used to cut completely through the material, and external broaches, which are used on the material’s surface only.

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VW Broaching Service, Inc.
Chicago, IL
888-803-9067
Specialty machining services include small & large volume broaching, broach manufacturing, & broach sharpening & reconditioning. Our machinery provides for prototype & breakdown work, including vertical shapers, keyseaters, & the most advanced disintegrating & wire EDM machines. Virtually all types of broaching: internal, external, surface, pot, blind & spiral. Fast turnaround for emergency work!
 
Avon Broach and Production Company
Rochester Hills, MI
248-650-8080
At the forefront of quality broaching since 1950, Avon offers pot broaching, continuous chain broaching and horizontal surface broaching for components in many shapes and sizes, from tiny carburetor pins to mammoth turbine wheels. This trusted ISO Certified company is your source for production broaching, broach tooling and wire EDM services. Small or large runs are easy and delivered on time.
 
Midwest Gear and Machining Inc.
Kansas City, KS
913-621-2933
Welcome to Midwest Gear & Machining! We tackle small or large broaching work, from 1 to 1 million pieces--square, round, oval, hex & keyway broaching. Celebrating 40 years of servicing America's gear & machining needs, we are experienced in gear cutting, full CNC machining, milling, & turning (.0125" up to 24"). Learn more about our engineering support. We excel at short notice & quick turn times.
 
IMAC Systems, Inc.
Tullytown, PA
800-955-4427
International Measurement and Control (IMAC) Systems, Inc. is proud to offer our precision machine shop for service. Since 1978 IMAC Systems, Inc. has been performing manufacturing of propriety products, government contract work and job/batch work. We are capable of manufacturing precision components and assemblies using CNC turning, milling, multi-axis mill turning, grinding and other processes.
 
Butler Gear Co., Inc.
Butler, WI
262-781-3270
Butler Gear is an ISO 9001/2000 certified, complete gear, job shop manufacturer. We manufacture standard, metric and special form gears- from samples or drawings. We also can do keyway and spline broaching. Our machining is completely customizable to meet your specific needs including all materials and any size quantity.
 
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Industry Information

Vertical Broaching

Generally speaking, a broach is a tool that contains a series of successively larger teeth and is used to cut through the part that is being produced. Items that are made through a variety of broaching techniques include gears, wrenches, gun components and keys. The main three broaching machines, which then have various sub categories of specialized machines, are the vertical, the horizontal and the rotary. Various products are specialized by the broaching teeth, which come in many different sizes; the teeth themselves may be spaced apart by varying distances depending on the part that is being broached. For example, spline shafts are known for their usually involute teeth that are commonly necessary for the transfer of torque from a power source to an engine. Gear hobbing is another technique that is mainly concerned with the size and configuration of the broaching teeth. Vertical broaching machines are used to create surface finishes for many tools and gears in various industries, including the aerospace, automotive and electrical sectors.

Vertical broaching offers many advantages, such as a high productivity rate, economical and efficient operation, accuracy, close tolerances, versatility and smooth finishes. The mechanics of vertical broaching are fairly simple. They are usually hydraulic machines, which are run by liquid fluid power like many other industrial machines. Push broaching, pull-up broaching, pull-down broaching and surface broaching are the four most common vertical broaching machine designs. A push broaching machine is much like an arbor press with a guided ram, which is a smaller model of machine with a lift table and supporting ram that keeps the product on target. However, this is not the most common type of broaching machine; the two ram pull-down machine is. This style machine has the rams under the table. Pull-up machines have the ram above the table; they usually have more than one ram. Most surface broaching, also known as external broaching or blind broaching, is done on a vertical machine.

Vertical Broaching
Vertical Broaching Image Provided by VW Broaching Services, Inc.