SUPPRESSION OF CHATTER VIBRATION OF A CNC MACHINE CENTRE—AN EXAMPLE

✍ Scribed by J.H. Wang; K.N. Lee

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 188 KB
• Volume: 10
• Category: Article
• ISSN: 0888-3270
• DOI: 10.1006/mssp.1996.0038

✦ Synopsis

This work exposes the complete procedure of suppressing the chatter of a machine centre without detailing each design step. The frequency of chatter of a machine centre was found by cutting a workpiece with increasing cutting depth. The weak component of the machine structure was then found by vibration testing. The vibration test showed that the spindle was the main weak component. A sensitivity analysis was then performed to optimise the spindle structure, and a new spindle was manufactured according to the optimisation result. The cutting capability of the machine centre with the new spindle was proved by a cutting test. The result showed more than a 100% improvement in cutting capability was achieved.