[雙語翻譯]齒輪設(shè)計(jì)外文翻譯--錐齒輪切削中齒輪設(shè)計(jì)對(duì)刀具載荷的影響

1、3500 英文單詞， 英文單詞，1.7 萬英文字符，中文 萬英文字符，中文 5400 字文獻(xiàn)出處： 文獻(xiàn)出處：Klocke F , Brumm M , Herzhoff S . Influence of Gear Design on Tool Load in Bevel Gear Cutting[J]. Procedia Cirp, 2012, 1(1):66-71.Influence of Gear Design on Tool Lo

2、ad in Bevel Gear CuttingFritz Klocke, Markus Brumm, Stefan HerzhoffAbstractDuring gear design, the tooth geometry is optimized towards the required running behavior. Pressure angle and tooth root radius of the gearset ar

3、e among the influencing factors. As the tools in bevel gear cutting are specially designed for each gearset, the tool profile geometry is defined by the gear geometry. The objective of this work is to analyze the influen

4、ce of the tool profile geometry on thermal and mechanical tool load during bevel gear machining. By means of a finite element based machining simulation the chip formation in bevel gear cutting of ring gears is calculate

5、d. The simulation results show a significant thermal and mechanical load maximum at the tool corner, where the maximal wear occurs. The variation of the tool profile geometry shows a high influence of the tool pressure a

6、ngle and the tool corner radius on the tool load at the tool corner.Keywords: Gear Cutting, Chip Formation, Machining Simulation, Tool Temperature, Tool Stress, Wear1. Introduction and ChallengeBevel gear cutting is a ve

7、ry productive machining process, especially in automotive applications. A ma- chine kinematic in six axes is necessary to manufacture the gear geometry. In typical applications, the unde- formed chip cross-section is L-s

8、haped, spreading over two adjacent cutting edges including the tool corner as shown in Fig. 1.Fig. 1 Multi-Flank Chip Formation in Bevel Gear CuttingIn this multi-flank chip formation tools often reach the tool life due

9、to excessive wear at the tool corner radius [1, 2, 3, 4]. This local wear limits the usable tool life in series production. Furthermore, tool wear related problems cannot be considered during the design phase of bevel Fi

10、g. 2 Simulation ModelA constitutive material model is used to describe the deformation behavior of the workpiece. The material model is implemented according to the theory of John- son and Cook [5]:kf is the flow stress,

11、 εthe plastic equivalent strain,UM the melting temperature and U0 the initial temperature. The material parameters for the used 16MnCr5 are listed in table 1:Table 1. Johnson and Cook Material Parameterparameter ε0[1/s]

12、A [MPa] B [MPa] C [-] n [-] m [-]value 1 560 400 0.022 0.2 1This material is typically used in gear manufacturing. As in bevel gear cutting no segmented chip formation occurs, further modifications of the material law, a

13、s presented in [6], are not necessary. A more detailed presentation of the simulation model is published in [7], where the tool load is analyzed for one tool geometry. In this paper, the simulation model is used to condu

14、ct a geometry variation for analysis of the influence of tool pressure angle and tool corner radius on the tool load.4. Simulation ResultsThe simulation model has been used to calculate characteristic key values for the

15、thermal and mechanical tool load in bevel gear cutting. Furthermore a variation of tool profile geometry has been done, which results are described in this section.In tool load analysis, two reasons for uneven load distr

16、ibution have to be distinguished. At first, an uneven chip shape will result in uneven load acting on the cutting edge, as discussed in [7]. Secondly, the shape of the cutting edge will influence the load occurring in th