Patent · US Expired

Method of and an apparatus for applying hard material to cutting tool teeth, especially the teeth of saw blades

US5592985A · kind A · utility

1Cited by

1References

3Claims

0Family size

Assignee

Vollmer Werke Maschinenfabrik GmbH · DE

Inventors

Bruno Hensinger · Laupheim, DE
Werner Reichenzer · Warthausen, DE

Key dates

Filing date	Dec 9, 1994
Grant date	Jan 14, 1997
Priority date	—
Expiry date	Dec 9, 2014

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22D19/06
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method of and an apparatus for applying hard material to cutting tool teeth (12), especially the teeth of saw blades (10). Due to its surface tension, the molten material (56) forms a spherical segment (58) in a mold cavity (40) which is defined around a tooth (12). The molten material (56) is cooled in the mold cavity (40) and subsequently heated again until it reaches a state which is at least approximately liquid. Only then is pressure, progressing in the direction towards the tip (18) of the tooth, applied to the spherical segment (58), whereby the latter is flattened. Hereby the precision in shape and durability of the teeth (12) is improved which are made of hard material (56), first molten and subsequently solidified.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.