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Laser-Assisted Machining

One-Step Finishing

posted Nov 19, 2011, 10:04 PM by Hongtao Ding   [ updated Nov 21, 2011, 8:59 AM ]

Machining of hardened steel components has traditionally been the domain of grinding. A laser-assisted machining (LAM) process with a larger material removal rate is developed to replace the currently used hard turning and grinding operations for machining hardened steel shafts.

Fig. 1 Laser-Assisted Profile Turning Simulation 

Fig. 2 Current and proposed methods for machining a transmission shaft.

Fig. 3 Thermal Model Simulation

Fig. 4 Surface Hardness

Fig. 5 Residual Stress

Improve Machinability and Surface Integrity

posted Dec 24, 2010, 10:27 AM by Hongtao Ding   [ updated Nov 19, 2011, 9:55 PM ]

Novel laser-assisted machining techniques were exploited for profile finishing of difficult-to-machine materials of complex geometric features.  The study of laser-assisted machining was based on a simultaneous experimental and numerical investigation of the process.

Fig. 1 Temperature Measurement for LAM of Waspaloy 

Fig. 2 Tool Wear

Fig. 3 Surface Finish

Fig. 4 Sub-surface 

Fig. 5 Micro-hardness

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