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:
Aug. 08, 2006
Filed:
May. 07, 2004
Yoshihiro Yamaguchi, Komatsu, JP;
Tetsuya Kabata, Komatsu, JP;
Yoshihiro Yamaguchi, Komatsu, JP;
Tetsuya Kabata, Komatsu, JP;
Komatsu Industries Corporation, Komatsu, JP;
Abstract
Cutting quality of the product, in particular, hole cutting quality, in plasma arc cutting is improved. A control unit, which controls a plasma cutting apparatus for cutting a product from a plate material by moving a plasma torch at a cutting speed along a cutting path corresponding to the product shape to cut the plate material, while supplying an arc current and a plasma gas to the plasma torch and forming a plasma arc from a nozzle of the plasma torch to the plate material, conducts control so that, when a hole is cut, a cutting speed is lower, a value of the arc current value is smaller, and a plasma gas flow rate or pressure is less than those when a contour is cut.