公开(公告)号：US20210362248A1

公开(公告)日：2021-11-25

申请号：US17053044

申请日：2018-05-04

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Zhigang DONG ,  Renke KANG ,  Guolin YANG ,  Xianglong ZHU ,  Shang GAO ,  Ping ZHOU ,  Dongming GUO

IPC: B23C5/10

Abstract: Disclosed is a helical milling tool with forward-backward feeding, the tool including a cutting portion, a neck portion and a handle portion, which are successively connected to each other; wherein the cutting portion includes a front-end cutting section, a circumferential cutting section and a back-end cutting section, which are connected successively to each other; the front-end cutting section is of an end milling cutter structure or a drill bit structure; the circumferential cutting section is of a cylindrical shape and is of a circumferential milling cutter structure; and the back-end cutting section is of a frustum-shaped. The tool can avoid defects such as layering and tearing, which go beyond processing requirements in a composite material, improve the processing quality, save on costs, simplify the processing process, improve the production efficiency and prolong the service life of the tool.

公开(公告)号：US20200056977A1

公开(公告)日：2020-02-20

申请号：US16346760

申请日：2017-11-08

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Ping ZHOU ,  Ning HUANG ,  Renke KANG ,  Dongming GUO ,  Ying YAN

IPC: G01N15/10

Abstract: A nanometer cutting depth high-speed single-point scratch test device includes a workbench, an air-bearing turntable, a test piece fixture, a test piece, a Z-direction feeding device, a nano positioning stage, a force sensor and a scratch tool. A micro convex structure with controllable length and height is machined in a position of the test piece to be scratched.

公开(公告)号：US20220305604A1

公开(公告)日：2022-09-29

申请号：US17289718

申请日：2020-04-17

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Ping ZHOU ,  Zhichao GENG ,  Ying YAN ,  Lin WANG ,  Kai WANG ,  Dongming GUO

IPC: B24B1/00 ,  B24B29/02 ,  B24B41/04 ,  B24B49/12 ,  B24B55/06

Abstract: Disclosed is a rocker type polishing apparatus and method for full-aperture deterministic polishing of a planar part. The apparatus includes a control system, a substrate, a lifting plate, a polishing module and a measuring module. The polishing module and the measuring module are arranged on the substrate. The lifting plate is arranged between the polishing module and the measuring module. The polishing module includes a rocker mechanism, a polishing pad surface dressing mechanism, a polishing pad surface profile measuring apparatus and a continuous polishing pad mechanism. Considering the specific surface profile of the planar part, the present invention makes the material removal rate distribution of the planar part and the surface profile of the planar part be in the normalized mirror symmetry relationship by controlling the material removal rate distribution on the surface of the planar part, thereby implementing the deterministic polishing of the planar part and ensuring the efficient convergence of the surface profile of the planar part in the polishing process. The present invention completes the high-precision polishing process by using the low-cost operation manner, thereby reducing the device cost.

公开(公告)号：US20210354211A1

公开(公告)日：2021-11-18

申请号：US17051626

申请日：2018-05-04

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Renke KANG ,  Zhigang DONG ,  Guolin YANG ,  Xianglong ZHU ,  Ping ZHOU ,  Shang GAO ,  Dongming GUO

IPC: B23C3/02

Abstract: Disclosed is a method for helical milling with forward-backward feeding, including the following steps: determining the aperture D1 of a pre-processing hole; according to a final aperture D of a through-hole to-be-processed and the aperture D1 of the pre-processing hole, selecting a suitable tool; clamping the workpiece to-be-processed and the tool; the tool processes the pre-processing hole with forward feeding with aperture D1, D1

公开(公告)号：US20190331645A1

公开(公告)日：2019-10-31

申请号：US16467376

申请日：2017-07-03

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Renke KANG ,  Zhigang DONG ,  Xianglong ZHU ,  Yidan WANG ,  Xun ZHANG ,  Ping ZHOU ,  Zhenyuan JIA

IPC: G01N29/12 ,  G01N29/22 ,  G01N27/00

Abstract: An ultrasonic cutter detection method and device, the method comprises the following steps: preliminary detection: frequency amplitude detection and fall-of-potential detection, if the ultrasonic cutter fails the above two detection solutions in the preliminary detection, repeating the two detections; if the ultrasonic cutter still fails the above two detection solutions, the ultrasonic cutter is judged to be unqualified; and reinspection: free modal detection and pressure modal detection. Using differences of the ultrasonic cutters surface in micro-crack directions that result in different degrees of sensitivity of crack to different ultrasonic vibration modes, combined with the fall-of-potential method and frequency amplitude detection method, a detection rate and a detection velocity of an unqualified ultrasonic cutter can be improved.