Unlike other broaching operations, blind hole broaching does not allow the tool to pass completely through the metal part. Instead, it produces an indent or slot in the metal. Read More…
Leading Manufacturers
Colonial Tool
Windsor, ON | 866-611-5119We take pride in what we offer to our customers. We have over 80 years of experience in the broaching industry, and we offer many services to customers, like spline cutting, rotary broaching, gear hobbing, and a whole lot more! We ensure our customers are satisfied by offering quality service, communication, and superior prices. You can learn more about what we do when you visit our website today!
Apex Broaching Systems
Warren, MI | 586-758-2626Apex Broaching Systems is a worldwide supplier of standard broaching machines, special purpose broaching machines, fixturing, automation, and cutting tools. We have over 69 years of innovative engineering, skilled craftmanship, quality manufacturing, assembly, and customer satisfaction. All of our products are made here in the USA. Contact us today and tell us how we can meet your demands!
Sturdy Broaching Service
Warren, MI | 586-779-2243With over 70 years of broach building experience, we have become the number one broaching source for leading industrial organizations in Southeast Michigan, Ohio, and Indiana. Our manufacturing department has complete in-house broach building capability. We take pride in our reputation for speed, quality, and competitive pricing. Contact Sturdy Broaching today to learn more!
American Broach & Machine Company
Ypsilanti, MI | 734-961-0300American Broach and Machine Company has been a leader in the broaching industry since were founded in 1919, supplying quality products to innumerable customers. We have always offered superior services, like internal broaching, at competitive prices. Our dedicated employees are highly knowledgeable and would love to answer any questions you may have. We look forward to hearing from you soon!
Orange County Broaching
Placentia, CA | 714-630-2622As a leading broaching company in the world, we do it all. We offer services to customers in every industry. We believe in offering superior service, a commitment to quality, and dedication to customers every day they work with us. Our goal is to ensure you can build a trusting relationship with us throughout your years in business. Learn more when you visit our website today!
Blind Broaching - Avon Broach and Production CompanyEvery aspect of this type of broaching, especially the tooling design and execution, are very difficult and are only done by skilled, experienced broachers. Although broaching styles that pierce from one side to the other, such as internal broaching require careful machining as well, it is not quite as difficult as a set-up that must only go part way through a surface.
Blind broaching is reserved for cutting slots, holes and imprints that are round, square, hexagonal or splines in hardware and parts for the aerospace and construction industries. A common example of a blind hole broached product is the internal hexagon on headless setscrews.
Applications for a broached blind hole are rare, but it is the only process able to produce holes with the necessary shapes and dimensions for some metal parts. It's also an economical and efficient means of internal spline production. Broaching blind holes is cost effective, highly repeatable and produces no variance among the products.
The blind holes produced by broaching machinery have a good surface finish when the part's material is hardened, smooth edges without burrs or cracks. The broaching machine is either hydraulically or electromechanically driven and, depending on the volume of work-pieces, is manually or automatically loaded and unloaded.
Blind broaching is either straight, meaning the tool containing the teeth is long and thin and moves linearly, or helical, which means the tool is rounded and moves in a circular motion; helical broaching is the most common. It uses a series of circular indexing tables that rotate under or over the work-piece.
The machinery pushes the work-piece up over the tool, where a shape punches down, withdraws and then turns to the next shape, which is bigger than the last. The next tool is positioned over the small punch, and is made bigger.
Some broaching machinery has dozens of successively larger tools that slowly create a larger blind hole. Each tool must be withdrawn backward over the broached surface, unlike most other broaching processes, which cut straight through the work-piece.