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. 19, 1999
Filed:
Jul. 05, 1995
Applicant:
Inventors:
Anders Lenander, Tyreso, SE;
Bjorn Ijungberg, Enskede, SE;
Assignee:
Sandvik AB, Sandviken, SE;
Primary Examiner:
Int. Cl.
CPC ...
B23B / ; C23C / ;
U.S. Cl.
CPC ...
428336 ; 51295 ; 51307 ; 51309 ; 407119 ; 428698 ; 428701 ; 428702 ; 427249 ; 4272553 ; 4274191 ; 4274192 ; 4274197 ; 427429 ; 427348 ; 427368 ;
Abstract
There is provided a tool at least partly coated with at least two refractory layers of which one of the said layers is a fine-grained .alpha.-Al.sub.2 O.sub.3 -layer which is the top layer along the cutting edge-line and the other a TiC.sub.x N.sub.y O.sub.z - or a ZrC.sub.x N.sub.y -layer being the top layer on the clearance face. The coated tool exhibits excellent flank and crater wear and high resistance to flaking, particularly when used for machining of low carbon steel and stainless steel. Used cutting edges can easily be identified by the naked eye.