supported by the National Basic Research Program of China (2011CB706804);the National Natural Science Foundation of China (51120155001,51121002)
As a basic and advanced machining technique,the high-speed milling process plays an important role in realizing the goal of high performance manufacturing.From the viewpoint of machining dynamics,obtaining chatter-fre...
supported by National Key Basic Research Program (973 Program, Grant No. 2011CB706804);National Natural Science Foundation of China (Grant No. 50805093);Science & Technology Commission of Shanghai Municipality, China (Grant No. 09QH1401500)
As one of the bases of gradient-based optimization algorithms, sensitivity analysis is usually required to calculate the derivatives of the system response with respect to the machining parameters. The most widely use...
supported by National Basic Research Program of China (973 Program, Grant No. 2011CB706804);National Natural Science Foundation of China (Grant Nos. 50835004, 51005087)
The conventional prediction of milling stability has been extensively studied based on the assumptions that the milling process dynamics is time invariant. However, nominal cutting parameters cannot guarantee the stab...
supported by the National Natural Science Foundation of China(Grant Nos.50835004 and 51005087);the National Basic Research Program of China(Grant No.2011CB706804)
This paper studies representation of rigid combination of a directed line and a reference point on it (here referred to as a "point-line") using dual quatemions. The geometric problem of rational ruled surface des...
supported by the National Key Basic Research Program (Grant No. 2011CB706804);the Science & Technology Commission of Shanghai Municipality (Grant Nos. 09QH1401500 and 10JC1408000)
This paper focuses on the development of an efficient semi-analytical solution of chatter stability in milling based on the spectral method for integral equations. The time-periodic dynamics of the milling process tak...
supported by the National Key Basic Research Program (Grant No. 2011CB706804);the National Natural Science Foundation of China (Grant No. 50835004);the Ministry of Science and Technology of China (Grant No. 2010ZX04016-012)
This paper analyzes the stability of milling with variable pitch cutter and tool runout cases characterized by multiple delays,and proposes a new variable-step numerical integration method for efficient and accurate s...