电加工与模具
電加工與模具
전가공여모구
Electromachining & Mould
2015年
5期
8-12
,共5页
朱颖谋%孙长宏%牛禄%顾琳
硃穎謀%孫長宏%牛祿%顧琳
주영모%손장굉%우록%고림
钼钛锆%电火花线切割加工%实验设计与分析%析因实验%响应曲面
鉬鈦鋯%電火花線切割加工%實驗設計與分析%析因實驗%響應麯麵
목태고%전화화선절할가공%실험설계여분석%석인실험%향응곡면
TZM%WEDM%design and analysis of experiment%fractional factorial experiment%response surface
为研究钼钛锆高温合金的单向走丝电火花线切割加工效率问题,通过25-1析因实验对影响加工效率的因素进行了筛选,得出影响显著的加工参数为脉宽、峰值电流和占空比,进而设计了三因素全因子实验并研究了显著因素对加工效率的影响。在此基础上,设计了中心复合响应曲面实验,通过实验结果拟合出加工效率的推荐公式。证实了在参数适用范围内,实际加工效率与拟合公式值吻合。此外,还分析了模型的参数适用范围及峰值电流对加工工件表面粗糙度的影响。
為研究鉬鈦鋯高溫閤金的單嚮走絲電火花線切割加工效率問題,通過25-1析因實驗對影響加工效率的因素進行瞭篩選,得齣影響顯著的加工參數為脈寬、峰值電流和佔空比,進而設計瞭三因素全因子實驗併研究瞭顯著因素對加工效率的影響。在此基礎上,設計瞭中心複閤響應麯麵實驗,通過實驗結果擬閤齣加工效率的推薦公式。證實瞭在參數適用範圍內,實際加工效率與擬閤公式值吻閤。此外,還分析瞭模型的參數適用範圍及峰值電流對加工工件錶麵粗糙度的影響。
위연구목태고고온합금적단향주사전화화선절할가공효솔문제,통과25-1석인실험대영향가공효솔적인소진행료사선,득출영향현저적가공삼수위맥관、봉치전류화점공비,진이설계료삼인소전인자실험병연구료현저인소대가공효솔적영향。재차기출상,설계료중심복합향응곡면실험,통과실험결과의합출가공효솔적추천공식。증실료재삼수괄용범위내,실제가공효솔여의합공식치문합。차외,환분석료모형적삼수괄용범위급봉치전류대가공공건표면조조도적영향。
In order to study the processing efficiency of Titanium-zir-conium-molybdenum (TZM) by unidirectional traveling wire electrical-discharge machining (WEDM) ,a 25-1 fractional factorial experiment was designed to screen out the significant discharge parameters which markedly influence the experiment results. A further full factorial experiment was conducted to explore the machining performance of TZM by unidirectional traveling WEDM under different pulse durations ,duty cycles and peak currents. On the basis of full-factorial experimental results ,a central composite response surface experiment was designed to explore the pattern of machining efficiency ,and fit the empirical formula of processing efficiency through the experiment. The verification experiment was designed to verify the accuracy of the recommended formula ,and the experimental results show that the actual machining efficiency agree with the theoretical value. Furthermore ,the parameters scope of the formula and the influence of peak current on surface roughness were analysed.