The effect of the allowance for residual stress hardening of aircraft components

被引：0

作者：

Bachurin, A. S. ^{[1
]}

Bobin, K. N. ^{[1
]}

Matveev, K. A. ^{[1
]}

Ryngach, N. A. ^{[1
]}

Kurlaev, N. V. ^{[1
]}

机构：

[1] Novosibirsk State Tech Univ, Prospekt K Marksa 20, Novosibirsk 630073, Russia

来源：

OBRABOTKA METALLOV-METAL WORKING AND MATERIAL SCIENCE | 2013年 / 03期

关键词：

numerical simulation; quenching stress; machining allowance;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Finishing machining allowances do not take into account technological heredity, that in some cases leads to a significant percentage of defects in the production of precision parts, that don't have sufficient stiffness. The study of finishing machining allowance value influence on parts quenching stresses is considered in the paper. Modeling is performed as a coupled problem of unsteady heat transfer from the workpiece to the quenching medium and the presence of thermal stresses in the workpiece. The model takes into account the dependence of the heat transfer coefficient and material characteristics from the local temperature of the part section. The calculations revealed that the maximum stresses arising in the preform during thermal processing does not substantially depend on the allowance, but allowance value affects the distribution of stresses within the workpiece. Also calculations revealed areas of the maximum tensile stress concentration and determined the optimal value of the finishing allowance.

引用

页码：31 / 35

页数：5

共 9 条

[1] Arendarchuk A. V., 1980, HEAT TREATMENT MACHI
[2] Firger V. I., 1982, HEAT TREATMENT ALLOY
[3] Harlamov G. A., 2006, MACHINING ALLOWANCE
[4] Isachenko V.P., 1981, TEPLOPEREDACHA UCHEB
[5] Jashhericyn P. I., 1977, TEHNOLOGICHESKAJA NA
[6] Kurlaev N. V., 2012, NAUK PROM OB TRUD 13, P64
[7] Kurlaev N. V., 2013, TEORETICHESKIE OSNOV
[8] Lahtin Yu. M, 1980, HEAT TREATMENT MACHI
[9] Panov A. A., 2004, OBRABOTKA METALLOV R

← 1 →