###### Abstract
Due to the effectiveness of trochoidal milling, a number of literatures focused on the optimization of trochoidal toolpath. [PERSON] et al. [10] provided a new technique to select the best trochoidal parameters, which could eliminate full immersion and keep the feed and acceleration smooth. They confirmed that the cutter life was extended by regulating radial depth of cut in trochoidal machining. [PERSON] et al. [11] adopted medial axis transform to generate trochoidal toolpath in cavity milling. They found that the abrupt increasing of radial depth of cut was avoided, which made trochoidal milling advantageous in high speed machining. [PERSON] et al. [12] employed epicycloidal path to improve the trochoidal cutting efficiency. Simulations and experiments showed that the cutting time could be effectively reduced with little cutting load increase. [PERSON] et al. [13] presented a novel trochoidal tool path generation technique, which could maintain radial depth of cut a constant, and avoid the un-necessary overlaps caused by conventional trochoidal tool path under constant trochoidal radius. They concluded that the radial depth of cut dominated the cutting forces and material removal rate. [PERSON] et al. [14] proposed a five-axis trochoidal flank milling strategy to machining complex 3D shaped cavities. Based on the given 3D cavity and the tool-workpiece engagement threshold, an optimized spatial cubic curve-based cyclic five-axis tool path could be generated. Finally, a practical application was given to show the correctness and effectiveness of the proposed model. Recently, stability in trochoidal machining was also deeply analyzed for enhancing the cutting efficiency. [PERSON] et al. [15] presented a method for obtaining the stability boundary of trochoidal machining considering trochoidal steps and spindle speeds. Later, they performed an experiment and found the proposed method could improve the machining efficiency. [PERSON] et al. [16] investigated the dynamic stability while trochoidal machining of IN718. The accurate chip profile during trochoidal milling was considered. They discovered that cutting parameters in trochoidal milling could be aggressively chosen without causing chatter, which was inevitable in traditional end milling. The effects of cutting temperature on the cutter life have been investigated for years. [PERSON] and [PERSON] [17] studied the cutter life under common cutting conditions; the amount of flank wear was taken as the metric of tool life. The causes of tool wear were attributed to two categories, one was temperature related, and the other was temperature independent. Finally, they concluded that the tool life and cutting temperature were closely related, and an equation was given to estimate the cutter life. [PERSON] et al. [18] analyzed the main difficulties in machining titanium alloys and nickel-based superalloys. They pointed out that the cutter temperature could exceed 1000 \({}^{\circ}\)C while machining the difficult to cut materials. This could soften the cutter edge and reduce the strength of the bonder, which will inevitably decrease the tool life. Finally, they concluded that cutter temperature was a critical factor that determined the tool life. Since cutting temperature greatly affected the cutter life, plenty of researches have been focused on cutting temperature. [PERSON] et al. [19; 20; 21] summarized the results of theoretical and experimental studies of tool temperature in interrupted cutting. They also investigated the temperature in semi-infinite rectangular corner heated by a time-varying heat flux. [PERSON] [22] adopted the infrared temperature measurement technique to investigate cutting temperature of AISI H13 steel by up milling and down milling. They found that cutter temperature increased with bigger axial depth of cut and severer tool wear but was almost not affected by cutting directions.