Lars Höglund AB is one of Scandinavia’s most qualified manufacturers of sheet metal products and provides custom designed products of very detailed precision. One of the main methods of manufacturing is laser cutting. When Lars Höglund AB signed up a new customer, with high demands in tolerances for the products, Lars Höglund AB thought it would be necessary to know the capability of the laser cutting machine. Also the process of how to retrieve this capability was interesting. The capability will be researched for the following elements: <ul type="disc">Cutting right angles in squares with a corner radius of 1 mm Cutting corners which are not right angle Cutting of circles with constant radius Measurements were made on 150 pieces of sheet metal details, which had been cut out by the machine. The data from the measurements where later used to study the capability. The capability study includes such things as calculations of capability indexes Cp and Cpk, the calculations are based on histograms and lean-mean-curves, constructed from the measurement data. The capability of the laser cutting machine was high except for some elements. Those elements with minor capability were the cutting of corner two and three for the rectangles which had a smaller radius than expected, side X for the triangles which were too long and also the diameter of the circles were too big. Advices on how to correct the faults have been given if Lars Höglund AB wants to further more improve the capability of the machine.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:kau-2725 |
| Date | January 2008 |
| Creators | Epure, Alexandru |
| Source Sets | DiVA Archive at Upsalla University |
| Language | Swedish |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
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