Cutting Ring Method on Residual Stress Measurement of Tungsten Tube

Cutting ring method is one of the methods for measuring the residual stress of tungsten tube, which is implementing by measuring dependent variable before and after the cut, the average distribution of residual stress thereby overall reflected.

Cutting ring method steps:
Taking deposition samples →obtaining the cutting ring by cutting the samples in the axial direction → removing the deposition matrix →cutting tungsten tube in the axial direction to get cutting ring → vacuum annealing (temperature of 1200 ℃, holding time of 1h) to get cutting ring

The incision of tungsten tube got after the removal of deposition matrix and the cut along the axial direction is significantly reduced, indicating that in the subsequent cooling process, shrinkage of deposition matrix produce great residual stress in tungsten tube, and the residual stress is present in the circumferential direction of tungsten tube. The residual stress decreases with the deposition temperature increases and the deposition of tungsten tube diameter increases.

After vacuum annealing, change of annular incision diameter is not obvious.

 

Tungsten Metals Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten.com.cn
 Tel.: 86 592 5129696; Fax: 86 592 5129797
 Email: sales@chinatungsten.com
 Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
 Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
 Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

• < Prev
• Next >