摘要
选择适当孔型系和辊锻道次,正确设计辊锻模,可在合适的辊锻机上完成双头螺栓的成形。对于辊锻出的双头螺栓,当辊锻压下率达到26.9%,回火温度为550℃～600℃时,形变部分与未形变部分的塑性和韧性相近,但前者的强度和硬度却高于后者。可见,采用辊锻成形工艺生产12150L柴油机缸体双头螺栓是可行的,且较原工艺生产有很大的优越性。
It is found that if the roll passes and the the rolling processes are reasonably chosen and the roll forging dies are designed properly, the stud can be formed on a suitable roll forging mill. When the roll forging draught is 26.9% and the tempering temperature is in the range from 550℃ to 600℃, while the plasticity and tenacity of the deformed and the undeformed parts of the stud are almost identical, the strength and hardness of the former are higher. It is seen that the stud can recommendably be produced by roll forming.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
1992年第3期52-58,共7页
Acta Armamentarii
关键词
辊锻
热处理
柴油机
螺栓
roll forging, roll forming, die design, heat treatment
