Abstract
Review of results experimental, production tests and features of machining forging workpiece of part type «chassis beam» from aluminum alloy V93pchT3 with significant deformations during milling process on SCHUNK VERO-S AVIATION system. Increase of production capacity on 2.9 times and significant better quality, geometrical properties if compare with conventional fixation by clamps.
Highlights
Https://doi.org/10.10 51/matecconf /202134603076 deformations of part during machining, increase cutting data, increase capacity and deсrease cost of manufacturing one of the important aircraft part – chassis beam
Significant deformation related to influence of temperature increase of 5°C, on temperature deformation of 0,95 mm on length of the part 4000 mm
In convetional technological process a workpiece is fixed by clamps directly on machine table
Summary
Https://doi.org/10.10 51/matecconf /202134603076 deformations of part during machining, increase cutting data, increase capacity and deсrease cost of manufacturing one of the important aircraft part – chassis beam. In convetional technological process a workpiece is fixed by clamps directly on machine table. In doing so during machining of part’s contour and pockets with stock removal till 4 mm we need to setup clamps a couple of times. Due to emerging deformation often faced deficits of material, as is the case for this kind of workpiece. Based on measurements results was decided to change production technological process – use SCHUNK VERO-S Aviation system only on OP50 because of curve workpiece deformations on OP10-OP40 expected more than 6 mm(compensation limit of VERO-S Aviation system +\- 6 mm). Due to deficit of material was used 10 special pins with dovetail clamping interfaces, which are inserted in VERO-S Aviation modules. New technological process include: - 05 – preparation interfaces for dovetail pins. - fixed, zero point clamping unit (type А), determinate zero point of workpice; - movable in one axis clamping unit, point for locked against rotation (type B), for determinate positioning of workpiece; - movable in two axis clamping unit, point is flexible in two axis (type С), isn’t involved in positioning, increase clamping forces combined with A and B modules; clamping unit (type D), isn’t involved in positioning, movable in all direction: X and Y axis +/- 6 mm, Z -+/- 6 mm, angle +/- 2 °
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