Cutting tool with twisted edge and manufacturing method thereof
US5226760A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 6, 1992 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | May 6, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/78
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a cutting tool having twisted edge in a blade part, having a sintered compact with higher hardness and higher wear resistance than a base sintered body buried and affixed along the twisted edge, and its manufacturing method. The blade part of the cutting tool comprises the base sintered body having a twisted groove in the position of forming the twisted edge on the outer circumference, and the sintered compact of high harndess and high wear resistance applied and buried in the twisted groove and affixed to the base sintered body by sintering, and the twisted edge is formed on the sintered compact of high hardness and high wear resistance. Its manufacturing method comprises a step of forming a presintered or a sintered base material of the blade part with material powder, a step of forming a twisted groove on the outer circumferenced of the base material, a step of filling the twisted groove with material powder of sinter of high hardness and high wear resistance, a step of heating and pressurizing the base material with the material powder, and sintering and affixing the material powder to the base material, and a step of machining thus sintered and united …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.