Abstract
At present, both preliminary and final HSM is recommended to be carried out according to the scheme of cut-down milling. Processing of reinforced and unreinforced polymers is also recommended to be carried out at cut-down travel. The main problem associated with cutdown milling is caused with insufficient dynamic stiffness or the presence of backlash in the feeder table. The proposed concept of machining allows eliminating fundamentally the influence of dynamic stiffness and the presence of backlash in the table feeding mechanism on the quality of machining with GUS makes it possible while retaining the advantages of cutdown milling. Some kinematic schemes for high-speed machining by milling and turnmilling are given in the paper. The schemes for forming geometrical roughness components in such machining and calculation formulas are presented. The results of experimental studies of roughness formation with disc cutters made of fiberglass composite material in high-speed machining are presented. The results obtained are compared with the calculated data.
Highlights
The task of search and introduction of technologies for processing materials in order to increase production efficiency looms are various at present
The most promising are the five-axis and multipurpose machine-tools. Such equipment provides access to the workpiece from different sides at a locating and allows flat elements to be oriented along the normal to the spindle that improves significantly the machining performance due to decrease of reinstallations and increase of machining speed. Both preliminary and final High-speed machining (HSM) is recommended to be carried out according to the scheme of cut-down milling
The main problem associated with cutdown milling is caused with insufficient dynamic stiffness or the presence of backlash in the feeder table
Summary
The task of search and introduction of technologies for processing materials in order to increase production efficiency looms are various at present. Despite the fact that 3D technologies have become popular recently, the essence of which is not to cut off the excess, but to build the required one, the technology of mechanical processing of materials continues to occupy a leading position in engineering production and to be improved. Compared with traditional methods it provides machining of a higher quality [1, 5, 7, 9], that makes possible to eliminate finishing operations. It simplifies the manufacturing process and increases the overall productivity of the products to manufacture
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