The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 2025
Filed:
Aug. 09, 2022
Applicant:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Inventor:
Jun Eto, Tokyo, JP;
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23C 5/10 (2005.12); B23C 3/00 (2005.12);
U.S. Cl.
CPC ...
B23C 5/10 (2012.12); B23C 3/00 (2012.12); B23C 2220/64 (2012.12);
Abstract
Provided is an endmill. The maximum spindle speed, per one minute, of a main spindle to which the endmill is attached is Smax. The number of teeth of the endmill is N. The outer shape of the endmill is Da. The natural frequency at which vibrations at the end of the endmill reach a maximum level is ωand/or N are set so that when the diameter-direction infeed amount of the endmill is set to Rd: i) ω×60/N×6<Smax, if Rd is at least 4% of Da; and ii) ω×60/N×3<Smax, if Rd is less than 4% of Da.