کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
794499 1466787 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Close loop control of a hydraulic press for springback analysis
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Close loop control of a hydraulic press for springback analysis
چکیده انگلیسی

The dimensional accuracy of formed components is an important issue for most stamping applications. The surface distortions and unexpected out of tolerances may cause deviation from the designed target shapes and may lead to assembly difficulties. Some of these problems occur due the elastic recovery characteristics of the sheet metal and is normally called the springback effect. In order to compensate the undesirable springback effects, much work has been performed in measuring and understanding this phenomenon. This paper describes the operation analysis of aluminum stamping on a 100 kN hydraulic press. A real time DSP based control is used to implement the controller and monitoring the press operations. The cylinder piston positions and chamber pressures are acquired with two optical scales and with analogue pressure sensors, respectively. A hybrid controller (force + position) for the punch is implemented in such a way that can be easily switched to control only the force or the position. A computer vision based method to automatically measure springback is also proposed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 177, Issues 1–3, 3 July 2006, Pages 377–381
نویسندگان
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