热加工工艺
熱加工工藝
열가공공예
HOT WORKING TECHNOLOGY
2010年
6期
12-13,16
,共3页
SWRH82B%变形温度%变形速率%变形程度
SWRH82B%變形溫度%變形速率%變形程度
SWRH82B%변형온도%변형속솔%변형정도
SWRH82B%deformation temperature%strain rate%strain degree
以线材SWRH82B为研究对象,采用GLEEBLI-2000热模拟试验机对金属翅性变形抗力进行实验研究.通过实测数据,分析了不同变形温度、变形速率和变形程度与变形抗力的关系,确定了金属塑性变形抗力的数学模型.结果表明,变形抗力随温度的升高而降低,当变形程度超过发生动态再结晶的临界应变量ε时,变形抗力下降趋于平稳.变形速率越快,变形抗力越低.
以線材SWRH82B為研究對象,採用GLEEBLI-2000熱模擬試驗機對金屬翅性變形抗力進行實驗研究.通過實測數據,分析瞭不同變形溫度、變形速率和變形程度與變形抗力的關繫,確定瞭金屬塑性變形抗力的數學模型.結果錶明,變形抗力隨溫度的升高而降低,噹變形程度超過髮生動態再結晶的臨界應變量ε時,變形抗力下降趨于平穩.變形速率越快,變形抗力越低.
이선재SWRH82B위연구대상,채용GLEEBLI-2000열모의시험궤대금속시성변형항력진행실험연구.통과실측수거,분석료불동변형온도、변형속솔화변형정도여변형항력적관계,학정료금속소성변형항력적수학모형.결과표명,변형항력수온도적승고이강저,당변형정도초과발생동태재결정적림계응변량ε시,변형항력하강추우평은.변형속솔월쾌,변형항력월저.
The deformation resistance of SWRH82B steel was carried out using Gleeble-2000 thermal simulator. The relationship between deformation parameters (deformation temperature, strain rate, strain degree) and deformation resistance was analyzed. The mathematical model of the deformation resistance was established. The results show that the deformation resistance increases with the increase of temperature, decreases when strain degree is over ε and then tends to be stable. The faster the strain rate, the lower the deformation resistance.
