Trockene Hochgeschwindigkeitsbearbeitung in Aluminium

Measurement and Analysis of Cutting Force and Optimization of Cutting Parameters by High Speed Milling

“…The axial thrust force F z shows a much less value and a fall tendency only after v c >2000m/min. This qualitative influence of v c on the milling force corresponds with the outcome of many past HSM tests [1,3]. It points out that the milling force can be greatly decreased indeed when v c is 5 to 10 times as much as conventional cutting speed so that v c >>v c cr , which is very useful to restrict and reduce the deformation by milling integral parts with thin walls and to improve their machining accuracy.…”

“…cutting efficiency, while restrict and reduce milling force as well as cutting deformation. Just this connection is used by HSM to set up little cutting depth, and properly great feed per cutter tooth [1,3] so that the feed rate v f = f z Z v c /(πD) and milling efficiency reach a high level, such as v fx =5 to 25m/min in the test of this paper. In order to slow down the cutting tool wear otherwise, f z should be not too great and optimized under influences of a lot of factors [1,3].…”

“…If v f is set to a value less than that calculated according to the formula above, that means f z is decreased. Research works indicated that [1,3] once f z < 0.02 to 0.04 mm, the produced chips by cutting plastic material become broken lamellae, and the cutting temperature rises, the wear of cutting edge quickens, the machined surface quality get worse, so that the expectant fine effect by HSM can not be achieved. and F z reduced separately 27%, 11.3% and 58.9% in mean value, moreover 51.7%, 50.5% and 82.3% in peak value after using oil-in-water emulsion, which demonstrates fully the important role of effective cooling and lubricating.…”

“…Advantages here are higher cutting efficiency, smaller cutting force and lower cutting temperature at work-piece, weaker cutting vibration, higher cutting quality, etc. Since 1930 when HSM was grounded, through many measurements and analyses of cutting force and temperature, it has been discovered that there are different critical cutting speeds v c cr to various work-piece materials; once the cutting speed v c >v c cr , the cutting force and temperature decrease with the further raise of vc [1]. In aviation and aerospace, automobile, electron and electrical equipment and other industry, it is widely used the integral parts with thin walls made of light metals in order to increase the mechanical strength and stiffness, toughness, breaking factor, and reduce the weight, number of parts and amount of assembly work.…”

Parametric tool wear estimation solution of HSC appropriate machining

“…For example, a<b and the V Fig. 4a,b Cutting condition using ball end cutter [1]. a In feed direction.…”