Broaching

  • Broaching is a cutting process for the production of inner and outer profiles using a shaped tool with a linear movement.

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  • The broaching tool has the same final shape as the workpiece profile that has to be realized.
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  • During the broaching process each tooth progressively removes material until the final shape of piece is achieved.
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  • All operations (roughing and finishing) are processed in a single step.
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  • Broaching process is recommended for mass production with the main advantage of achieving a constant quality.
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  • Broaching operation can be an alternative in many cases to milling, drilling, turning, grinding and EDM technologies.
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  • The main requirements in broaching process are : the part surface must be parallel to the direction of the tool axis, the part must be conveniently located in a fixture and the tool must be able to pass completely in the piece.
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Domains of application:

Broaching alternatives:

 

  • Broaching of helical or straight internal profile.

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  • Broaching of keyway profiles.
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  • Broaching of parts after heat treatment using a high speed broaching process.
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  • Dry or minimal lubrification broaching process.
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  • Broaching of varius external profile.
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  • Broaching of turbine(fir tree) and compressor(dovetail) profiles for aeronautics and energy applications.
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  • POT broaching for external splines.
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Varinelli can provide and give references for all of these applications.

Contact

VARINELLI S.r.l.
Via Del Bruno 46 - Cp 95
20862 Arcore
Tel.: +39 039 60730
Fax: +39 039 607312
E-Mail: info@varinelli.com