The calculation method for real machining path of electrode-wire central line in numerical control wedm programming and relevant technological measures were put forward.

In mastercam programming, the starting point, hight of raising cutting tool and the machining track are all affected by Absolute and Incremental coordinates.

Through the customization of the profile milling track of Pro/ENGINEER,a reasonable machining track can be gotten.

It is based on modifying the spline tool path so that it is op.

A new sheet metal dieless forming technology is introduced It adopts the principle of “layered manufacture” of rapid prototyping An approach of tool path generation based on the STL file for sheet metal part forming is presented By slicing the offset model of STL file, the forming tool path can be obtained from the intersection line of the offset surface with horizontal plan

To slove the problems,a method is proposed to realize the sheet metal dieless forming based on CNC machine tool and the related techniques such as forming fixture design,support manufacturing and forming tool path generation.

In this paper,the double tool carriers lathe of SINUMERIK 810T CNC is used as research object,the overall architecture of the cutting path simulation is introduced,and the techniques of developing the system.