CORROSION AND FATIGUE RESISTANT CEMENTED CARBIDE PROCESS LINE TOOL

• US 20190330719A1
• Filed: 06/20/2017
• Published: 10/31/2019
• Est. Priority Date: 06/23/2016
• Status: Abandoned Application

• Current Assignee: Hyperion Materials & Technologies Sweden AB, Sandvik Hyperion AB
• Original Assignee: Sandvik Hyperion AB
• Inventors: DORVLO, Selassie, HEWITT, Stephen
• Application Number:
  US16/312,304
• Publication Number:
  US 20190330719A1
• Time in Patent Office: Days
• CPC Class Codes: B22F 2005/001 Cutting tools, earth boring or grinding tool other than table ware
• CPC Class Codes: B22F 2005/002 Tools other than cutting tools
• CPC Class Codes: B22F 2301/15 Nickel or cobalt
• CPC Class Codes: B22F 2301/20 Refractory metals
• CPC Class Codes: B22F 2302/10 Carbide
• CPC Class Codes: B22F 5/00 Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
• CPC Class Codes: B23B 2222/28 Details of hard metal, i.e. cemented carbide
• CPC Class Codes: B23B 27/148 Composition of the cutting inserts
• CPC Class Codes: C22C 29/005 comprising a particular metallic binder
• CPC Class Codes: C22C 29/08 based on tungsten carbide

Abstract

A process line tool of a cemented carbide comprising in wt %; about 2.9-11 Ni; about 0.1-2.5 Cr₃ C₂; and about 0.1-1 Mo; and a balance of WC, with an average WC grain size less than or equal to 0.5 μm.

Claims

1. A process line tool comprising a composition containing in wt % (weight %):

2.9 to 11 Ni;

0.1 to 2.5 Cr₃C₂;

0.1 to 2.5 Mo;

and a balance of WC.

2. The process line tool according to claim 1, wherein the composition comprises from 9.1 to 10.1 wt % Ni.

3. The process line tool according to claim 1, wherein the composition comprises from 0.8 to 1.0 wt % Cr₃C₂.

4. The process line tool according to claim 1, wherein the composition comprises from 0.8 to 1.0 wt % Mo.

5. The process line tool according to claim 1, wherein the composition comprises from 87.9 to 89.1 wt % WC.

6. The process line tool according to claim 1, wherein the process line tool is a rotary cutter or metal forming tool.

7. The process line tool according to claim 1, wherein the composition comprises from 2.95 to 3.15 wt % Ni.

8. The process line tool according to claim 7, wherein the composition comprises from 0.1 to 0.3 wt % Cr₃C₂.

9. The process line tool according to claim 7, wherein the composition comprises from 0.1 to 0.3 wt % Mo.

10. The process line tool according to claim 7, wherein the composition comprises from 95.85 to 96.85 wt % WC.

11. The process line tool according to claim 1, wherein the process line tool is a metal forming tool.

12. The process line tool according to claim 1, wherein the sintered tool has a tungsten carbide average grain size of less than 0.5 microns.

13. The process line tool according to claim 1, wherein the sintered tool has a tungsten carbide average grain size of about 0.35 microns.