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Mathew D Skilliter, 49Manchester, NH

Mathew Skilliter Phones & Addresses

Bedford, NH   

Holland, OH   

Nashua, NH   

1880 Commonwealth Ave, Brighton, MA 02135   

West Roxbury, MA   

3753 Ashton Woods Pl, Columbus, OH 43230    614-9018627   

Concord, NH   

Mentions for Mathew D Skilliter

Publications & IP owners

Us Patents

Friction Stir Welding Of Corner Configurations

US Patent:
6676008, Jan 13, 2004
Filed:
Apr 30, 2002
Appl. No.:
10/135259
Inventors:
Timothy J. Trapp - Upper Arlington OH
Timothy Stotler - Perry Township OH
Mathew Skilliter - Upper Arlington OH
Assignee:
Edison Welding Institute - Columbus OH
International Classification:
B23K 2012
US Classification:
2281121, 228 21
Abstract:
A radiused corner support plate is used to form a corner void when making L- and T-corner welds that are filled with plasticized work piece material during friction stir welding to form a filleted corner weld. An improved friction stir welding tool uses either disrupting features such as crossed rectangular grooves in the distal tip end or a curved tip region or both to improve plasticized work piece material flow below the distal end and in the region of the fillet.

Tool For Friction Stir Welding

US Patent:
6676004, Jan 13, 2004
Filed:
Feb 12, 2002
Appl. No.:
10/076246
Inventors:
Timothy J. Trapp - Upper Arlington OH
Timothy Stotler - Perry Township, Franklin County OH
Mathew Skilliter - Upper Arlington OH
William C. Mohr - Upper Arlington OH
Mark L. Hunt - Greenwood SC
Assignee:
Edison Welding Institute, Inc. - Columbus OH
International Classification:
B23K 2012
US Classification:
228 21, 2281121, 2988921
Abstract:
A friction stir welding tool for welding high-strength materials with one or more of the following features: 1) a curved transition geometry structure at the shoulder face and probe interface; 2) a tool material selected on the basis of an ultimate tensile strength determined at or above the temperature of the tool processing temperature; 3) a compressive stress at the point of crack fatigue introduced by mechanical or chemical means; and 4) a threaded probe with a) a major to minor thread diameter ratio that increases toward the distal end of the probe and/or b) with a curved thread root.

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