Title:
ALLOY STEEL END MILL
Document Type and Number:
Japanese Patent JP2011225958
Kind Code:
A
Abstract:
To provide an alloy steel end mill and a surface-covered alloy steel end mill which exhibits superior wear resistance over a long-term use.
The alloy steel end mill is provided in which an alloy steel having a high-temperature tempering softening resistance comprising, by mass%, 2.0 to 3.0% of C, 3.5 to 6.0% of Si, 1.0% or less of Mn, 3.5 to 4.0% of Cr, 10.0 to 12.0% of one kind or the sum of two kinds of W and Mo, 3.0 to 3.5% of V, 4.0 to 5.0% of Co and the balance being Fe and inevitable impurities constitutes a tool base body. The surface-covered alloy steel end mill is also provided.
Inventors:
WATANABE HIROSHI
MATSUMURA KOICHI
KATASHIMA RYO
MATSUMURA KOICHI
KATASHIMA RYO
Application Number:
JP2010099394A
Publication Date:
November 10, 2011
Filing Date:
April 23, 2010
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP
International Classes:
C22C38/00; B23C5/10; B23C5/16; C22C38/36; C23C14/06; C23C14/16; B22F3/15
Attorney, Agent or Firm:
Kageyama Shuichi
Kazuo Tomita
Masayuki Miyake
Kazuo Tomita
Masayuki Miyake