AUTOMATION OF CUTTING OF BLANKS FROM PROFILED ROLLED METAL

The role of automation of technological preparation of production to ensure the competitiveness of engineering products. At manufacturing of engineering products the determining factor of cost reduction is to reduce material consumption, primarily in the blank production (billets of machine parts need to have minimal allowances for further machining). The Maximum use of business waste metal can also reduce the consumption of metal. The technological possibilities of modern equipment for nesting has increased considerably. Experience of machine-building enterprises, which use equipment for cutting sheets, including specialized computer-aided manufacturing (CAM) for nesting, which fit the equipment, proves, that the utilization ratio of metal can be increased in average by 22...28 % when the specialized CAM for nesting is using. Analysis of specialized CAM for nesting, available on the market, shows that these software tools generally correspond to the modern scientific-technical level of developments of this type. However, they have some drawbacks. The peculiarities of software package “Module nesting” are considered. The methods of automation technology cutting of parts made of profile rolled metal, calculation of norms of material consumption and utilization are described. Algorithms of linear, rectangular shaped layouts, which are implemented in the software package “Module nesting” are shown.

cutting of metal, cutting the route, zone of thermal influence, business waste of metal, thermal cutting machine, card cutting, NC-program, thought technological process

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