机械管理开发
機械管理開髮
궤계관리개발
MECHANICAL MANAGEMENT AND DEVELOPMENT
2015年
2期
12-14
,共3页
李栋%周金旭%尚二鹏%赵贺
李棟%週金旭%尚二鵬%趙賀
리동%주금욱%상이붕%조하
点焊%响应曲面法%抗拉强度%参数优化
點銲%響應麯麵法%抗拉彊度%參數優化
점한%향응곡면법%항랍강도%삼수우화
spot welding%response surface method%shear strength%optimization of welding parameters
采用响应曲面法（RS M ）对S T 14进行点焊工艺实验设计，并通过优化焊接参数来提高接头的抗剪强度。建立接头抗剪强度与焊接参数之间的二阶数学模型，并通过验证试验检验所建立的数学模型的准确性，可以被用于后续的优化分析。根据优化方案得到最佳工艺参数：焊接电流为12.21 kA ，焊接时间为200 ms ，焊接压力为0.58 MPa。
採用響應麯麵法（RS M ）對S T 14進行點銲工藝實驗設計，併通過優化銲接參數來提高接頭的抗剪彊度。建立接頭抗剪彊度與銲接參數之間的二階數學模型，併通過驗證試驗檢驗所建立的數學模型的準確性，可以被用于後續的優化分析。根據優化方案得到最佳工藝參數：銲接電流為12.21 kA ，銲接時間為200 ms ，銲接壓力為0.58 MPa。
채용향응곡면법（RS M ）대S T 14진행점한공예실험설계，병통과우화한접삼수래제고접두적항전강도。건립접두항전강도여한접삼수지간적이계수학모형，병통과험증시험검험소건립적수학모형적준학성，가이피용우후속적우화분석。근거우화방안득도최가공예삼수：한접전류위12.21 kA ，한접시간위200 ms ，한접압력위0.58 MPa。
This paper focuses on the development of an effective methodology to determine the optimum welding conditions that maximize the strength of joints produced by spot welding using response surface methodology (RSM ) .RSM is utilized to create an efficient second-order analytical model for shear strength in terms of welding parameters weld current ,weld time and weld pressure .Experiments were conducted as per central composite design of experiments for spot welding of 1.0 mm thick ST14 specimens .Through a comprehensive software analysis ,the optimal parameter value of response was obtained .Based on the opti-mization scheme ,12.21 kA welding current ,0.58 MPa welding pressure and 200ms welding time ,are identified as the optimal set of process parameters .
