Kinematic Geometry of Surface Machinin Episode 3 pptx

... (1.6) â 2008 by Taylor & Francis Group, LLC KINEMATIC GEOMETRY OF SURFACE MACHINING â 2008 by Taylor & Francis Group, LLC 18 Kinematic Geometry of Surface Machining surface P there ... 0   < 0   > 0   < 0   > 0   < 0   > 0   = 0   < 0   = 0   > 0   = 0   < 0   > 0   &g...

Ngày tải lên: 27/06/2014, 05:20

... Machining of Sculptured Surfaces on a Multi-Axis Numerical Control (NC) Machine 459 11 .2 Machining of Surfaces of Revolution 469 11 .2 .1 Turning Operations 469 11 .2.2 Milling Operations 474 11 .2.3 Machining ... Classication of Surfaces 17 1. 3 .1 Surfaces That Allow Sliding over Themselves 17 1. 3.2 Sculptured Surfaces 18 1. 3.3 Circular Diagrams 19 1. 3.4 On Classi...

Ngày tải lên: 13/08/2014, 09:20

... The existence of open and closed sides of a surface P eliminates the â 20 08 by Taylor & Francis Group, LLC 28 Kinematic Geometry of Surface Machining motion of the work and of the cutting ... t 1.P t 2. P ±v x ±ω x ±v y FIGURE 2. 1 The principal instant kinematics of sculpture surface generation. â 20 08 by Taylor & Francis Group, LLC 24 Kin...

Ngày tải lên: 13/08/2014, 09:20

... 0 V ω 1 ω 2 ω 1 ω 2 ω 2 ω 1 ω 4 −ω 4 +ω 4 +ω ω 1 2 ω 4 −ω 1 ω 2 ω 1 ω 2 ω 2 ω 1 ω 1 ω 2 ω 3 ω 2 ω 1 ω 3 ω 2 ω 1 ω 2 ω 1 ω 2 ω 1 ω 3 ω ω V 3 31 =3 13 3 32 =3 23 3 41 =3 14 3 42 =3 24 3 43 =3 34 3 34 : ω 4 = 0 3 35 : V 1–2 = 0 V 1–2 V 1–2 3 45 : V 1–2 = 0 ω 1 ... 0 3 21 =3 12 3 41 =3 14 3 42 =3 24 3 43 =3 34 3 43 =3 34 3 23 : ω 3 =...

Ngày tải lên: 13/08/2014, 09:20

... analytical descrip- tion of the geometry of contact of two surfaces for the needs of the theory of surfaces generation. 4 .5. 3.1  On a Possibility of Implementation of Two of Plücker’s Conoids At ... 110 Kinematic Geometry of Surface Machining 4.4.2 Indicatrix of Conformity of the Surfaces P and T Introduced in this section is a quantitative measure of the rate of...

Ngày tải lên: 13/08/2014, 09:21

... 184 Kinematic Geometry of Surface Machining of the parameter of motion w. The theory of surface generation also deals with surfaces for which the enveloping surface is congruent to the moving surface. 5.2.1.3 ... the part surface P and of the generating surface T of the cutting tool (Figure 5.5b). Working surfaces of the * Pat. No. 14492 46, USSR, A Method o...

Ngày tải lên: 13/08/2014, 09:21

... + ⋅ θ (5 .77 ) The computed values of principal radii of curvature of the generating surface T of the form-cutting tool (see Equation 5 .77 ) were used for the development of novel designs of the ... Francis Group, LLC 196 Kinematic Geometry of Surface Machining Use of a single-parametric kinematic scheme of surface generation allows a simplication. The gen...

Ngày tải lên: 13/08/2014, 09:21

... be considered as a line of intersection of the three surfaces, say of the generating surface T of the cutting tool, of the rake surface R s , and of the clearance surface C s . This requirement ... cutting edge of a precision form-cutting tool can be considered as a line of intersection of three surfaces: of the generating surface T of the cutting tool, of...

Ngày tải lên: 13/08/2014, 09:21

... representation of the tool-in-use system. 6.3.3 Reference Planes Investigation of the impact of kinematics of a machining operation on actual (kinematical) values of geometry of the active part of a cutting ... Maps of a Sculptured Surface P and of the Generating Surface T of the Cutting Tool Gauss introduced the notion of mapping of surface normals onto the...

Ngày tải lên: 13/08/2014, 09:21

... & Francis Group, LLC 312 Kinematic Geometry of Surface Machining form of an involute surface that has the base circle of diameter d b . When machining the surface P, the cam is swinging ... condition of proper part surface generation when regrinding a broach. â 2008 by Taylor & Francis Group, LLC 310 Kinematic Geometry of Surface Machining Regardles...

Ngày tải lên: 13/08/2014, 09:21

... conguration of the focal sur- faces. For the purpose of verication of accessibility of the surface P by the â 2008 by Taylor & Francis Group, LLC 356 Kinematic Geometry of Surface Machining matrix ... 2008 by Taylor & Francis Group, LLC 366 Kinematic Geometry of Surface Machining [7] Pat. No. 118 5749, USSR, A Method of Sculptured Surface Machini...

Ngày tải lên: 13/08/2014, 09:21

... 372 Kinematic Geometry of Surface Machining The maximal resultant deviation h Σ max of the surface P ac from the surface P nom is often used for the quantitative evaluation of accuracy of ... 384 Kinematic Geometry of Surface Machining The considered approach can be enhanced to the situation when radii of normal curvature of the part surface P and of t...

Ngày tải lên: 13/08/2014, 09:21

... functions of coordinates of the point K on the surface P, of coordinates of the point K on the surface T, of the angle à of the local relative orientation of surfaces P and T, and of the direction ... 408 Kinematic Geometry of Surface Machining The selection of appropriate criterion of optimization is critical for the implementation of the DG/K-method o...

Ngày tải lên: 13/08/2014, 09:21

... neglected. For machining of form surfaces of revolution having signicant variation of curvature of the axial prole, a method of turning of surfaces of revolution is proposed [16]. In this method of surface ... of this method of surface machining ensures perfect results when the radi- us of curvature of the axial prole of the form part surface is of consta...

Ngày tải lên: 13/08/2014, 09:21

... 478 Kinematic Geometry of Surface Machining form surface of revolution [13], nishing of the part surface is performed with the cylindrical indenter. When machining the surface P, the ... Group, LLC 472 Kinematic Geometry of Surface Machining of the cutting edge of the cutter at the current CC-point.* In this method of surface machining, the work having axi...

Ngày tải lên: 13/08/2014, 09:21