Apparatus and method for manufacturing abrasive tools
US7819722B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2007 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Jan 26, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D18/0009
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A compression molding apparatus and method for the manufacture of abrasive layers for abrasive tooling which provides a compression mold space defined between an inflexible wall surface and a flexible wall surface. The apparatus and method of the present invention is particularly well suited to making annular or hollow cylindrical shaped abrasive layers of novel configurations during a single mold cycle useful for grinding wheel and the like, as well as other shapes such as laps, wherein the flexible wall expanded with fluid pressure provides a highly uniform distribution of pressure against the surface of the mold composition being formed. In an annular configuration, the flexible wall is used to radially direct pressure against a molding composition disposed in an annular configuration wherein the axial length of the annular mold shape formed may be many times greater than priorly obtained by the prior art means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.