kinematic geometry of surface machining free

... expression of the optimal parameters of kinematics of the sculptured surface machining on a multi-axis NC machine in terms of geometry of the part surface and of the generating surface of the form-cutting ... Group, LLC KINEMATIC GEOMETRY OF SURFACE MACHINING â 2008 by Taylor & Francis Group, LLC 18 Kinematic Geometry of Surface Machining surface P there exists a corresponding motion of a special ... book is limited to those parameters of the surface- machining process that can be expressed in terms of surface geometry and of kinematics of relative motion of the cutting tool. Historical Background People...

Ngày tải lên: 27/06/2014, 05:20

... expression of the optimal parameters of kinematics of the sculptured surface machining on a multi-axis NC machine in terms of geometry of the part surface and of the generating surface of the form-cutting ... Elements of Geometry of Active Part of a Skiving Hob 277 6.4.2 Elements of Geometry of the Active Part of a Cutting Tool for Machining Modied Gear Teeth 279 6.4.3 Elements of Geometry of the Active ... Kinematic Geometry of Surface Machining motion of the work and of the cutting tool at every instant of machining. An appropriate criterion of optimization is of critical importance. Relative motion of...

Ngày tải lên: 27/06/2014, 08:20

... expression of the optimal parameters of kinematics of the sculptured surface machining on a multi-axis NC machine in terms of geometry of the part surface and of the generating surface of the form-cutting ... of Contact of the Surfaces P and T 138 4.6.1 On a Possibility of Implementation of the Indicatrix of Conformity for Identication of Kind of Contact of the Surfaces P and T 138 4.6.2 Impact of ... Kinematic Geometry of Surface Machining [ ] ( F fr Limit feed rate per tooth of the cutting tool F fr Vector of the feed-rate motion of the cutting tool ( F ss Magnitude of the side step of...

Ngày tải lên: 13/08/2014, 09:20

... The existence of open and closed sides of a surface P eliminates the â 2008 by Taylor & Francis Group, LLC 28 Kinematic Geometry of Surface Machining motion of the work and of the cutting ... 30 Kinematic Geometry of Surface Machining Implementation of the principle of inversion has proven convenient for the investigation of multiparametric surface generation. 2.1.1 Establishment of ... instant kinematics of sculpture surface generation. â 2008 by Taylor & Francis Group, LLC 24 Kinematic Geometry of Surface Machining circular diagrams of all possible local patches of a smooth,...

Ngày tải lên: 13/08/2014, 09:20

... parameters of geometry of the surface P, the kinematic schemes of surface generation specify the generating surface of the cutting tool, as well as the principal part of the kinematic structure of ... Francis Group, LLC 46 Kinematic Geometry of Surface Machining nonagile kinematics of surface generation can be considered as a particular (degenerated) case of agile kinematics of surface generation, ... problem of surface generation, the true kinematic schemes of surface machining are used. This yields determination of the actual machined part surface P act . Machining operations of actual surfaces...

Ngày tải lên: 13/08/2014, 09:20

... 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 conformity of two surfaces. ... cases of the surface s conguration. Application of Dupin’s indicatrix of the surface of relative curvature enables only approximate analytical descrip- tion of the geometry of contact of the surfaces. ... Francis Group, LLC 122 Kinematic Geometry of Surface Machining An accounting of the members of higher order in the equation of Dupin’s indicatrix Dup(P/T) of the surface of relative curvature...

Ngày tải lên: 13/08/2014, 09:21

Ngày tải lên: 13/08/2014, 09:21

Ngày tải lên: 13/08/2014, 09:21

Ngày tải lên: 13/08/2014, 09:21

Ngày tải lên: 13/08/2014, 09:21

Ngày tải lên: 13/08/2014, 09:21

Ngày tải lên: 13/08/2014, 09:21

Ngày tải lên: 13/08/2014, 09:21

Ngày tải lên: 13/08/2014, 09:21

Ngày tải lên: 13/08/2014, 09:21

Ngày tải lên: 13/08/2014, 09:21

... tasks of process planning. The recent intro- duction of parallel machines (mill-turn machining centers) can greatly reduce the total machining cycle time required by the conventional sequential machining ... capability of activating i cutting tools ( I Ն i Ն 1) on distinct MUs, in parallel, either for the purpose of machining a single workpiece, or for the purpose of machining, ... operations. 3. 30 to 50% of total operations are of one machining mode [22]. Examples are randomly generated in the following manner: Step 1: Set L ϭ maximum number of levels in the precedence...

Ngày tải lên: 25/12/2013, 19:15

... j1 size of the grid = number of columns and rows of the matrix P Dx step of the grid in the x-direction Dy the step of the grid in the y-direction NB matrix of the nearest points K matrix of distances K max ... Conservation of an extrapolation trend. - In the case of the Radial basis functions method the system of linear equation must be completed and solved for each node of grid and the main advantage of ... y2 minimum and maximum of y-coordinates of points XYZ z1 , z2 minimum and maximum of z-coordinates of points XYZ ),( yxf interpolation / approximation function D planar domain of ),( yxf )(h γ variogram...

Ngày tải lên: 21/01/2014, 07:20

... maximum of y-coordinates of points XYZ z1 , z2 minimum and maximum of z-coordinates of points XYZ i1 , j1 size of the grid = number of columns and rows of the matrix P P i,j elements of the ... 9 Number of circulations = values of matrix K Values of matrix NB 9 9 9 9 9 9 9 9 9 9 Ordinal index of point XYZ 2.4.2 Shape of generated surface One of the first aspects evaluated by the user of ... matrix P Z vector of z-coordinates of points XYZ DZ auxiliary vector with the same size as the vector Z 13 step of grid in x-direction step of grid in y-direction points XYZ nodes of grid Fig....

Ngày tải lên: 21/01/2014, 07:20

... number of boundar- ies (b) is limited to 100. 3.8.5 Faults NAME.ZL is the name of an ASCII file containing coordinates of initial and end points of the line segments, at which the created surface ... name NAME.GRs. It contains the mat- rix i1xj1 of z-coordinates in the nodes of the grid. The format of the file is compatible with Surfer (Golden Software) grid file format: DSAA i1 j1 x1 x2 y1 ... it was decided to keep primary compatibility of input / output data formats with the Surfer software (see [S2]), be- cause the majority of related software uses Surfer data format either directly...

Ngày tải lên: 21/01/2014, 07:20