Special Form Rotary Broaches
Peter Bagwell
2021-03-05T13:03:44-05:00
Special Form Rotary Broaches
Some common special broaches include Serration, Spline, Involute Spline, Double Hex, Double D, Double Square, Double Keyway, Missing Teeth, Spun Ground, Rectangle, Triangle, Letter and Number.
Serrations are commonly found at the end of shafts, as internal or external knurls, and locking features for fasteners or washers. Many serration forms can be made using rotary broaching tools in a lathe, mill or turning machine.
Learn More or Request QuoteSpline and involute spline rotary broach shapes are popular forms used for connecting driven components in machines and vehicles. Typical examples would include gear shifters on motorcycles and clamps for engine shafts.
Learn More or Request QuoteInvolute Spline rotary broach tools can be made to international standards or custom made to your specifications. Typical examples would include clamps for engine shafts and gear shifters on motorcycles.
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Double hexagon rotary broach shapes are popular forms used for driving a fastener with a hex key or socket bit. Typical examples would include custom screws and shaft extensions. Hex keys can be used in more positions with a double hex hole.
Learn More or Request QuoteDouble square rotary broach shapes are popular forms used for driving a custom made socket with a socket wrench. Typical examples would include sockets made for deep distances or custom forms. Square drivers can be used in more positions.
Learn More or Request Quote‘D’ and Double ‘D’ rotary broach shapes are popular forms used for creating holes to connect shafts. Typical examples would include motor driven shafts or door handle hardware. The flat can easily be added to the end of a shaft.
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Custom rotary broaches can be made for creating keyways in small diameters under one inch in length. Hubs and connectors for various shafts often require keyways, and broaching them on your turning machine will often same time & money.
Learn More or Request QuoteSpecial spline and serrated forms with missing teeth can be formed with rotary broaching tools. The process is the same as broaching involute spline. Precision machined holes with a missing tooth are common in connectors and fittings.
Learn More or Request QuoteTrying to grind individual radii on the corners of hexagon and square rotary broaches is not always practical, but the spun ground diameter is often an acceptable alternative. This small reduction often saves cycle time and money.
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Rectangle forms are common in manufacturing pockets, slots and clearance holes. The problem many machinists face is creating the form with sharp corners. Many small, sharp cornered rectangles can be formed with rotary broaching.
Learn More or Request QuoteUsing the Letter Broach within the machine eliminates secondary operations and reduces opportunities for operator error. Cost savings can include fewer machines, less scrap, less labor and reduced tooling costs.
Learn More or Request QuoteTriangle forms are becoming more popular and can be manufactured using rotary broaching. Design considerations should include an oversize pilot hole, and room for chips. Triangle broaches are ideal for small, shallow forms.
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Request QuoteWe can manufacture almost any form per your print or specifications. We also offer reverse-engineering services and can produce a rotary broach from your part.
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