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Title:
HIGH-PRECISION INTERNALLY-COOLED CEMENTED CARBIDE BAR WITH HELICAL HOLES
Document Type and Number:
WIPO Patent Application WO/2017/206474
Kind Code:
A1
Abstract:
A high-precision internally-cooled cemented carbide bar with helical holes, comprising an outer bar body (1) and an inner bar body (2). A vertically-through cylindrical channel (3) is provided at the center inside the outer bar body (1). The outer wall of the inner bar body (2) is attached to the inner wall of the cylindrical channel (3). Vertically-through helical cooling channels (4) are provided at the center inside the inner bar body (2). A thread (5) parallel to the helical path of each helical cooling channel (4) is provided on the outer wall of the outer bar body (1). The helix angle of the thread (5) ranges from 25 degrees to 45 degrees. The high-precision internally-cooled cemented carbide bar with helical holes is made of a binary alloy, so that the consumption of tungsten alloy is reduced. The helix angle of the thread ranges from 25 degrees to 45 degrees, so that the application range is expanded, and meanwhile, the cooling rate can be increased, thus increasing the rotational speed of the tool, improving the precision, and prolonging the service life.

Inventors:
TANG, Xiaodong (Pingshu Village, ZhangqiaoTownChangshu, Jiangsu 0, 215500, CN)
Application Number:
CN2016/109196
Publication Date:
December 07, 2017
Filing Date:
December 09, 2016
Export Citation:
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Assignee:
SUZHOU RUISEN CEMENTED CARBIDE CO.,LTD (Pingshu Village, ZhangqiaoTownChangshu, Jiangsu 0, 215500, CN)
International Classes:
B23Q11/10; F16S3/00
Foreign References:
CN105840980A2016-08-10
CN103252679A2013-08-21
CN202447524U2012-09-26
CN102950314A2013-03-06
CN203830815U2014-09-17
CN204512929U2015-07-29
DE102014104192B32015-05-28
US4955764A1990-09-11
Attorney, Agent or Firm:
SUZHOU GROUNZE INTELLECTUAL PROPERTY AGENCY CO.,LTD. (Room 608, building 2 Wanbao Commercial Plaza, NO.1580 Donghuan Road, Suzhou Industrial Par, suzhou Jiangsu 1, 215021, CN)
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