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.
Patent No.:
Date of Patent:
May. 18, 1993
Filed:
Mar. 09, 1992
Orrin A Newton, Northville, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
Disclosed are a method for fixturing and manufacturing a machined workpiece, an article of manufacture including, in combination, a workholder and a workpiece, and a core box used to form the workholder. The workholder preferably is made of a cured resin bonded sand mixture. The workpiece is placed within the core box. Then the uncured resin bonded sand mixture is packed about the workpiece in the core box and allowed to cure to form a frangible workholder for securing the workpiece. The core box may then be disassembled to release the workholder. The workholder next is positioned and affixed relative to a machining apparatus and machined. Mechanical forces, such as impact blows and/or abrading particles, such as sand or shot, are applied to the frangible workholder to disintegrate the workholder from about the machined workpiece.