Material for built-up edge formation and built-up edge formation method

Patent metadata

Field	Value
Publication number	US-11819930-B2
Application number	US-201716349466-A
Country	US
Kind code	B2
Filing date	Oct 31, 2017
Priority date	Nov 14, 2016
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

The present invention provides a material for built up edge formation having a resin block containing a high molecular weight compound having a weight average molecular weight of 5×10 4 or higher and 1×10 6 or lower, a medium molecular weight compound having a weight average molecular weight of 1×10 3 or higher and lower than 5×10 4 , and a carbon.

First claim

The invention claimed is:

1. A material for built up edge formation, having a resin block containing:
a high molecular weight compound (A) having a weight average molecular weight of 5×10 4 or higher and 1×10 6 or lower;
a medium molecular weight compound (B) having a weight average molecular weight of 1×10 3 or higher and lower than 5×10 4 ; and
a carbon (C),
wherein the material for built up edge formation further comprises a difficult-to-cut block having a Vickers hardness of 300° or more below the resin block such that the material for built up edge formation forms a built up edge on a cutting tool prior to cutting a work.

2. The material for built up edge formation according to claim 1 , wherein
the material for built up edge formation is used in a built up edge formation method comprising a built up edge formation step of forming a built up edge at the cutting edge of a cutting tool by cutting the material for built up edge formation with the cutting tool.

3. The material for built up edge formation according to claim 1 , wherein
the difficult-to-cut block is a fiber reinforced composite material and/or a difficult-to-cut metal material.

4. The material for built up edge formation according to claim 1 , wherein
the high molecular weight compound (A) is a thermoplastic resin having a weight average molecular weight of 5×10 4 or higher and 1×10 6 or lower, and
the medium molecular weight compound (B) is a thermoplastic resin having a weight average molecular weight of 1×10 3 or higher and 2×10 4 or lower.

5. The material for built up edge formation according to claim 1 , wherein
a content of the high molecular weight compound (A) is 10 to 60 parts by mass with respect to 100 parts by mass in total of the high molecular weight compound (A), the medium molecular weight compound (B), and the carbon (C).

6. The material for built up edge formation according to claim 1 , wherein
a content of the medium molecular weight compound (B) is 10 to 75 parts by mass with respect to 100 parts by mass in total of the high molecular weight compound (A), the medium molecular weight compound (B), and the carbon (C).

7. The material for built up edge formation according to claim 1 , wherein
a content of the carbon (C) is 5 to 70 parts by mass with respect to 100 parts by mass in total of the high molecular weight compound (A), the medium molecular weight compound (B), and the carbon (C).

8. The material for built up edge formation according to claim 1 , further having
an adhesive layer below the difficult-to-cut block.

9. The material for built up edge formation according to claim 8 , wherein
the adhesive layer comprises an acrylic polymer.

10. A cutting tool comprising
a built up edge obtained from a material for built up edge formation according to claim 1 .

11. A cutting work method comprising
a cutting step of cutting a workpiece material using a cutting tool according to claim 10 .

Assignees

• Mitsubishi Gas Chemical Co

Inventors

• Matsuyama Yousuke
• Horie Shigeru

Classifications

• B23B35/00 Primary

  Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods · CPC title

• B23B51/06

  Drills with lubricating or cooling equipment {(B23B51/042 takes precedence)} · CPC title

• B23B2226/275

  Carbon fibre reinforced carbon composites · CPC title

• B23B2226/61

  Plastics not otherwise provided for, e.g. nylon · CPC title

• B23B2228/52

  Solid lubricants · CPC title