公开(公告)号：US20240024993A1

公开(公告)日：2024-01-25

申请号：US18350921

申请日：2023-07-12

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Fuji WANG ,  Hongwei ZHAO ,  Rao FU ,  Meng ZHAO ,  Dekun YIN ,  Zhenyuan JIA

IPC: B23P15/32 ,  B23P15/46

CPC classification number: B23P15/32 ,  B23P15/46

Abstract: The present invention belongs to the technical field of composite material processing, and relates to a hole making tool for aramid fiber-reinforced plastic and a design method thereof. The drill bit has a step reversed point angle structure, which can reduce a trust force during drilling and effectively cut off a high toughness aramid fiber, thus to improve the hole making quality of an AFRP-related component. It is proved that the new tool can significantly improve the hole making quality of an AFRP component, improve the service life and safety degree, and greatly reduce the processing cost. Therefore, the present invention has a broad application prospect in the fields of aerospace, military industries and civil application.

公开(公告)号：US20190299304A1

公开(公告)日：2019-10-03

申请号：US16465960

申请日：2018-05-17

Applicant: Dalian University of Technology

Inventor： Zhenyuan JIA ,  Fuji WANG ,  Zegang WANG ,  Meng ZHAO ,  Boyu ZHANG ,  Yu BAI

IPC: B23C5/18 ,  B23C5/10

Abstract: A special end cutting edge attached cutter for carbon fiber reinforced polymer/plastic with designable micro-tooth configuration, having an end cutting edge, a peripheral cutting edge with variation inverse helical groove, a peripheral cutting edge with constant inverse helical groove and a shank. Two parallel V-shaped chip pockets are designed on the end cutting edge of the cutter in two cutting edge directions which are symmetrical around a cutter axis as a center. The structure may enhance chip removal performance during high-speed milling of impenetrable slots and impenetrable windows, reduce wear of the end cutting edge, conduct configuration design for micro-teeth of the peripheral cutting edge, reduce the cutting thickness of the micro-tooth cutting edges, and effectively solve the problem of damage of the micro-tooth edges. A section of peripheral cutting edge with variation left-hand inverse helical flute angle is designed near the end cutting edge.

公开(公告)号：US20210107109A1

公开(公告)日：2021-04-15

申请号：US17023012

申请日：2020-09-16

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Fuji WANG ,  Jianbo YAN ,  Meng ZHAO ,  Boyu ZHANG ,  Rao FU ,  Wei LIU ,  Jianwei MA ,  Zhenyuan JIA

IPC: B24B3/32

Abstract: A method for machining a drill with tilting blade slot structures for composite machining is provided. In the machining method, a face of the drill produces a downward component force for the inlet material to inhibit the inlet material from turning up; and a cutting edge inclination of an end surface at an outer turning point in a corner region of the drill is a positive value. The face and a flank are firstly partially ground in the corner region of the drill. The face at the outer turning point is ground with a grinding wheel to obtain two tilting blade slot structures. After grinding, a new face and a new cutting edge are obtained; and the cutting edge inclination on the end surface formed by the new cutting edge and a reference plane is a positive angle.

公开(公告)号：US20200147701A1

公开(公告)日：2020-05-14

申请号：US16465266

申请日：2018-05-10

Applicant: Dalian University of Technology

Inventor： Fuji WANG ,  Zhenyuan JIA ,  Meng ZHAO ,  Yu BAI ,  De CHENG ,  Chong ZHANG

IPC: B23B51/02

Abstract: A vertical-edge double-step sawtooth cutter for preparing high-quality holes of composite material and thereof hybrid stack structure, and has three parts which are a major cutting edge region A, a minor cutting edge region B and a shank region C. The minor cutting edge region B comprises a step vertical-edge region D and a sawtooth cutting region E. This has the step structure and the sawtooth structure which is distributed in the first step, has a recutting function at the inlet and a reverse cutting function at the outlet in the direction opposite to the main cutting motion. The cutter has the vertical edge structure distributed in the second step, and the angle of the second step is a negative value, thereby realizing chip breaking and crushing, reducing scratch to the upper-layer composite material and metal hole walls.

公开(公告)号：US20210170619A1

公开(公告)日：2021-06-10

申请号：US17082881

申请日：2020-10-28

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Fuji WANG ,  Shen QIU ,  Rao FU ,  Boyu ZHANG ,  Meng ZHAO ,  Wei LIU ,  Jianwei MA

IPC: B26D7/18 ,  B26F1/16

Abstract: Multi-adaptive fast loading attached air-cooled dust removal equipment is disclosed. The equipment is mainly composed of five parts: a spindle clamping mechanism, a link mechanism, a bearing connecting mechanism, an axial telescopic mechanism and a dust treatment mechanism. The equipment is connected with a tool holder through an axial connecting mechanism and installed on a machine tool. The axial telescopic mechanism forms a cavity with a processing surface, the gas flow generated by a negative pressure vacuum cleaner forms negative pressure in the cavity, and the telescopic mechanism is fixed to a machine tool spindle housing through the link mechanism to prevent the rotation of the spindle from driving the equipment to rotate and interfere with a workpiece, finally realizing rapid collection and treatment of chips.