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| | | | | | | | | | | | | | | | | | | | | | | | | | | PUNCHING AND STAMPING How to compare production cost | | | | | | | | | | Fig. 1 Sheet metal products produced by punching from sheet, coil or by hard tooled stamping (casings for lighting appliances). | | | | | | | | | | he aim of process engineering is to identify the least expensive production cycle to make a product. A sheet metal product follows a cycle that starts from raw material, goes through shearing (punching, blanking or laser cutting) followed by forming (bending, stretch-forming or embossing, rollforming). he cutting technologies by punching and stamping (fig. 1) will be taken into consideration in these pages due to their similarities. he purpose is to identify the technology from among those available that, in a specific working situation (number and type of parts to be manufactured) completes the production at least cost. We will then analyse these technologies to define the typical costs of each one, firstly identifying the three factors that added together give the production cost: raw material, | | | | | | A short guide to identify the technology from among those available, for the lowest possible production cost, according to the number and type of parts to be produced. | | | | | | | | | | Andrea Dallan | | | | | | | | | | | | | | 58 | | | | | | | | | | LAMIERA • OCTOBER 2005 | | WWW.MECCANICANEWS.COM | | | | | | | | | | | | | | | | | | | | | | | | | | |
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