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:
Jan. 29, 2002
Filed:
Jun. 23, 1999
Toshiba Machine Co., Ltd., Tokyo, JP;
Abstract
The object of the present invention is to provide a process for manufacturing a hydrostatic bearing of porous materials with less performance dispersion, at a high rate of productivity. A work piece is comprised of a base member and a housing. The base member is made of porous bronze and set on the front of the housing. A pressure chamber is formed in the rear side of the base material. The work piece is set in a cutting machine, where the surface of the base material is cut with a single crystal diamond bite. Then, molybdenum disulfide is applied together with a binder onto the surface of the base material, and then baked, thus forming a surface restrictor layer. The work piece is set back in the cutting machine, and the surface portion of the surface restrictor layer is cut with the single crystal diamond bite. After the cutting process, compressed air is supplied to the rear side of the surface restrictor layer via the base material. The flow rate of the compressed air is monitored. The depth of cut on the surface portion of the surface restrictor layer of the next cutting is controlled on the basis of the monitored flow rate so as to obtain a desired flow rate.