Process analysis and optimization of Nd:YAG continuous laser grooving for fracture splitting of a C70S6 connecting rod

DOI

10.2991/icadme-16.2016.9How to use a DOI?

Keywords

Continuous laser; Grooving; Notch; Fracture splitting; Process optimization

Abstract

Fracture splitting processing, which has board prospects in the precision manufacturing of engine connecting rod, has been widely applied in production so far, and laser pre-processing a fracture splitting notch which is a notch as the fracture initiation source for the subsequent splitting process is the important link in the fracture splitting technology. Therefore, the continuous laser grooving for fracture splitting was analyzed and the influence parameters during the continuous laser grooving were studied in this article. Based on the physical process between the laser beam and materials during laser grooving, the finite element analysis model was built for the continuous laser grooving, 3D gauss conical heat source model was checked based on the relative experimental investigation, then the numerical simulation of temperature field of continuous laser grooving of steel C70S6 was carried out, and the influence rule of main process parameters on the morphology of the fracture splitting notch was obtained. Research results showed that the dimension of the notch processed by continuous laser met the production requirement; notch depth and notch width was positively correlated with laser output power but negatively correlated with transverse speed; facula radius was negatively correlated with notch depth but positively correlated with notch width; it is not recommended that transverse speed is too high in the actual production, and smaller facula radius should be selected in the reasonable range of technological parameters to obtain the fracture splitting notch with larger ratio of depth to width. The reasonable selection of process parameters should be as follows: output power is from 400W to 450W, transverse speed is 30mm/s and facula radius is 0.06mm.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shuqing Kou
AU  - Yan Gao
AU  - Baojun Lin
PY  - 2017/07
DA  - 2017/07
TI  - Process analysis and optimization of Nd:YAG continuous laser grooving for fracture splitting of a C70S6 connecting rod
BT  - Proceedings of the 2016 6th International Conference on Advanced Design and Manufacturing Engineering (ICADME 2017)
PB  - Atlantis Press
SP  - 49
EP  - 56
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-16.2016.9
DO  - 10.2991/icadme-16.2016.9
ID  - Kou2017/07
ER  -