The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 27, 2021

Filed:

Jan. 25, 2019
Applicant:

Snap-on Incorporated, Kenosha, WI (US);

Inventors:

Daniel M. Eggert, Kenosha, WI (US);

Steven R. Wente, Kenosha, WI (US);

David G. McGreal, Twin Lakes, WI (US);

Jeffrey M. Arendt, Union Grove, WI (US);

Assignee:

Snap-on Incorporated, Kenosha, WI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23H 5/04 (2006.01); B23K 5/16 (2006.01); B21D 37/01 (2006.01); B23H 9/12 (2006.01); B21K 5/16 (2006.01); B21D 28/34 (2006.01);
U.S. Cl.
CPC ...
B23H 5/04 (2013.01); B21D 37/01 (2013.01); B21K 5/16 (2013.01); B23H 9/12 (2013.01); B21D 28/34 (2013.01);
Abstract

A method of manufacturing a punch, such as a socket punch, using wire EDM with at least six steps. The method involves forming a blank, holding the blank with an adapter, machining grooves in the blank, manufacturing a side relief of a working portion using wire EDM, milling the working portion to a final size, and forming a cone point on the end of the working portion. The method allows the punch to be manufactured more quickly and from a CAD model, therefore removing the need for over-specialized equipment and improving manufacturing times.


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