تاثير پارامترهاي فرايند شكل دهي افزايشي بر نيرو و زمان در ورق سه لايه Al - Cu - Al

Effect of machining parameters on the force and time of incremental forming of explosive-welded Al/Cu/Al multilayer

هدف از اين تحقيق، بررسي تاثير پارامترهاي ماشينكاري بر روي نيرو و زمان شكل دهي ورق هاي فلزي چند لايه مي باشد. به منظور دستيابي به اين هدف، يك نمونه ورق فلزي متشكل از سه لايه آلومينيوم-مس-آلومينيوم به روش جوش انفجاري توليد شد. سپس با استفاده از از روش آماري رويه پاسخ (RSM)، آزمايشات شكل دهي (ناشي از اثر متغيرهاي تحقيق) انجام شد. با استفاده از ضرايب تخميني مدل آماري، ارتباط ميان متغير پاسخ و هريك از متغيرهاي ورودي آزمايش بدست آمد. سرانجام اين مدل با انتخاب مناسب فاكتورهاي تحقيق، محدوده بهينه اي از عوامل تاثيرگذار را پيش بيني نمود.

Incremental sheet metal forming is one of methods more innovation in science and industrial zone. The purpose of this research is the study of influence of factors such as tool diameter, step down, rotation speed and feed rate on metallurgical properties of explosive-welded Al/Cu/Al multilayer. In order to this purpose, a sample of explosive-welded Al/Cu/Al multilayer was produced. Then, a statistical model (RSM) was used for the experimental plan (with these variables) to determine the runs of experiment (or selected points). Next, forces and times values of sheet metal forming were measured. The experimental results showed that force and time forming of Al/Cu/Al multilayer is highly sensitive to factors like step down and feed rate. Also the most effective coefficient on the incremental forming is belonged to step down factor that showed it is very important in machining parameters. Finally, by using coefficient estimates of (RSM) model, relation between input variables and response was obtained. Finally, this model was predicted the optimum design points of machining parameters.