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DESIGN AND MANUFACTURE OF DIES SYSTEM USING COMPUTER | ||
| AL-TAQANI | ||
| Article 1, Volume 24, Issue 3, 2011, Pages 0-0 | ||
| Abstract | ||
| The effects of different variables on the metal plates (plates for house's numbers) are studied using designed and manufacturing the die using CAD/CAM system. The study was done in two stages: The first stage is for computer works, in which the die is designed and drawn by AutoCAD program for two dimensional drawing. Then the preparation is done to achieve the process by SURFCAM program, in which had both drawing and operation. In this study the operation only is used for generating the numerical control codes automatically for die and plates with very small periods time in which for classical way needed more time and may be have several mistakes and generation the code for single type only but in the present study it can be generated any types of codes for dies of simplicity and/or complicated shapes and for any type of machines without to new inputs. After the generation of the codes, the die is prepared for final work on the milling machine (CNC) (Computerized Numerical Control). The second stage, which consists of several steps, parts of die are prepared for programmed milling machine and the die had been operated on by the special press in order to do the embossing process to form the metal plates. Several parameters can be changed (thickness of plate, type of process, and the heat treatment) as an application for die's work. The last step is analyzed for effective stresses on the plates by ANSYS program. Three plates from Aluminum are used with different thickness (P1=0.5 mm, P2=0.7mm, P3=0.8mm) with dimensions (10x15.5 cm) and the pressure force is applied to get the embossing process with amount (30, 40, 50) bar and the results obtained indicate that the plate with thin thickness (P1) have difficult formation compared with the other samples (P2, P3) in which several cracks are formed, the plates are unaccepted to be used to produce the numbers of houses and vice versa the plate P2 which have the best ability and the plate P3 with high thickness have little cracks in which made him the best one in the product of these plates. When the applied pressure is increased the number of cracks increased too, and the best pressure was 30 bar. The experimental results are agreed with the theoretical results that get from ANSYS for stress analysis for three plates. | ||
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