US 12,403,564 B2
Treatment method for a cutting piece
Frederic Chateau, Champtoce (FR); Julien Jeanneau, Carquefou (FR); Pierre Richet, Metz (FR); and Florent Sponem, Vigy (FR)
Assigned to ArcelorMittal, Luxembourg (LU)
Appl. No. 16/756,061
Filed by ArcelorMittal, Luxembourg (LU)
PCT Filed Nov. 15, 2018, PCT No. PCT/IB2018/058989
§ 371(c)(1), (2) Date Apr. 14, 2020,
PCT Pub. No. WO2019/097438, PCT Pub. Date May 23, 2019.
Claims priority of application No. PCT/IB2017/057131 (WO), filed on Nov. 15, 2017.
Prior Publication US 2021/0402566 A1, Dec. 30, 2021
Int. Cl. B23P 15/40 (2006.01); B24B 1/04 (2006.01); B24C 1/02 (2006.01); B24C 1/10 (2006.01); B24C 5/00 (2006.01); B24C 11/00 (2006.01)
CPC B24C 1/02 (2013.01) [B23P 15/406 (2013.01); B24B 1/04 (2013.01); B24C 1/10 (2013.01); B24C 5/005 (2013.01); B24C 11/00 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for treatment of a cutting piece, the method comprising:
a first step, throwing shots by an ultrasonic shot peening apparatus at the cutting piece to define a cutting surface with shot impacts; and
a second step, grinding the cutting surface with the shot impacts over a chosen thickness to define a treated cutting surface;
wherein the cutting piece is a rotary knife.