tailieunhanh - Kinematic Geometry of Surface Machinin Episode Episode 15

Tham khảo tài liệu 'kinematic geometry of surface machinin episode episode 15', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 472 Kinematic Geometry of Surface Machining FIGURE Utilization of the orientational motion of the second kind of the cutter in the method of turning form surfaces of revolution SU Pat. No. 1171210 . of the cutting edge of the cutter at the current CC-point. In this method of surface machining the work having axial profile 1 of variable curvature is rotating about its axis of rotation OP with a certain rotation o. p Figure . The cutting edge of the cutter an arc segment of a curve 2 having permanently variable radius of curvature RT is used for performing this machining operation. The cutter is traveling along the axial profile of the part surface in the peripheral direction 3. On the lathe this motion is obtained as the superposition of the axial motion 4 of the cutter and its reciprocal motion toward the part axis of rotation 5 and in backward direction 6. In addition the cutter is performing the orientational motion of the second kind see Chapter 2 . This motion of the cutter is performed either in the direction 7 or in the direction 8. The actual direction of the orientation motion of the cutter depends upon the actual geometry of the axial profile 1 of the part surface at two neighboring CC-points Kị and Ki 1. Ultimately due to the cutter motion either in the direction 7 or in the direction 8 the cutting edge is rolling with sliding over the axial profile 1 of the part surface being machined. Implementation of the orientational motion of the cutter allows for better fit of the radius of curvature RT to the part surface radius of curvature Rp at every CC-point K. In this way see Equation the surface generation output is increasing. It is important to note a possibility of machining form surfaces of revolution in compliance with the method Figure when not the cutter but a SU Pat. No. 1171210 A Method of Turning of Form Surfaces of Revolution. . Radzevich Int. Cl. B23B 1 00 Filed November 3 1984. 2008 by Taylor Francis Group LLC Examples of