C - Chemistry – Metallurgy – 25 – F
Patent
C - Chemistry, Metallurgy
25
F
C25F 3/02 (2006.01) C23C 16/02 (2006.01) C30B 29/04 (2006.01)
Patent
CA 2225373
A carbide substrate including a binder prepared to receive a cutting material such as a diamond coating thereon. The substrate is immersed in an electrolyte solution with the substrate acting as the anode thereby providing for an electro-polished substrate surface. The electro-polished substrate surface is then etched to substantially remove the binder phase of the carbide substrate, the etching being to a depth of up to about 15 microns. The resulting surface is susceptible for receiving a coating of the diamond cutting material.
L'invention concerne un substrat carbure comprenant un liant lui permettant de recevoir un matériau coupant, tel qu'un revêtement diamant, sur sa surface. Le substrat est immergé dans une solution d'électrolyte où il joue le rôle d'anode, ce qui donne une surface de substrat polie par électrolyse. Cette surface de substrat polie par électrolyse est ensuite attaquée, ce qui permet de retirer sensiblement la phase liant du substrat carbure, l'attaque se faisant sur une profondeur d'environ 15 microns. La surface en résultant peut recevoir un revêtement du matériau diamant coupant.
Lockhart Zane D.
Miller Oscar H.
Shumaker Carl
Borden Ladner Gervais Llp
Credo Tool Company
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