Title:
HAND DRILL BIT FOR PROCESSING LAMINATED MEMBER OF CARBON FIBER REINFORCED RESIN-BASED COMPOSITE MATERIAL AND ALUMINUM ALLOY
Document Type and Number:
WIPO Patent Application WO/2023/071697
Kind Code:
A1
Abstract:
A hand drill bit for processing a laminated member of a carbon fiber reinforced resin-based composite material and an aluminum alloy, comprising: a shank part and an edge part, connected in sequence, the edge part comprising a transverse edge, a first main cutting edge, a second main cutting edge, a third main cutting edge and an auxiliary cutting edge which are sequentially and adjacently arranged, the auxiliary cutting edge being configured in a spiral shape. The structural design of the edge part ensures the centering capacity of the drill bit, reduces axial force on the drill bit, ensures sharpness of the drill bit, can effectively sever fibers, and can reduce aluminum alloy exit burrs.
Inventors:
HUANG WENLIANG (CN)
WANG ZHENGUO (CN)
LV TAO (CN)
CHENG MOLI (CN)
WANG ZHENGUO (CN)
LV TAO (CN)
CHENG MOLI (CN)
Application Number:
PCT/CN2022/122632
Publication Date:
May 04, 2023
Filing Date:
September 29, 2022
Export Citation:
Assignee:
BLUEDRILL TECH SHENZHEN CO LIMITED (CN)
International Classes:
B23B51/00; B23B45/00
Foreign References:
| CN113798559A | 2021-12-17 | |||
| CN105458354A | 2016-04-06 | |||
| CN113319333A | 2021-08-31 | |||
| CN210254408U | 2020-04-07 | |||
| CN203918036U | 2014-11-05 | |||
| CN104028812A | 2014-09-10 | |||
| JP2000084721A | 2000-03-28 |
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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