Abstract
This paper presents a methodology for establishing off-line programming system with toolpath verification and simulation including visualization of the machining process, fixture orientation and machine movements. This methodology is described using IDEF0 diagrams and is elaborated by using PTC Creo CAD/CAM system. This paper describes modeled detailed virtual prototype of WEDM machine Ewis, with all kinematic relationships between moving components being defined, with the aim to include virtual machine model in machine simulation. Off-line programming allows immediate execution on the machine of multiple verification programs after verification. Therefore, the off-line programming is verified using the real example and its program verification and execution.
Highlights
Wire electrical discharge machining (WEDM) is a widely accepted non-traditional material removal process introduced in the late 1960s'
The rest of the paper is organized as follows: in Section 2 we present an overview of 2 axis wire EDM; Methodology for off-line programming is described in Section 3; We have developed virtual prototype of WEDM machine Ewis; In Section 4, virtual prototype is used for machining simulation in CAD/CAM system
This paper presents methodology for successful establishing of environment for off-line programming within a CAD/CAM system that enables wire tool path simulation, material removal simulation, and machine simulation involving the movement of machine parts
Summary
Wire electrical discharge machining (WEDM) is a widely accepted non-traditional material removal process introduced in the late 1960s'. Adequate environment for CAD/CAM programming should include: (1) module for modeling or loading the reference models (CAD), (2) module for manufacturing (CAM) to generate toolpaths-CLF, (3) module for postprocessing to obtain G codes, (4) module for toolpath verification and simulation, (5) module for simulation of material removal, and (6) module for machine simulation, which involves the movement of machine parts (machine simulation by running the program). This verification allows the elimination of errors from collisions. The rest of the paper is organized as follows: in Section 2 we present an overview of 2 axis wire EDM; Methodology for off-line programming is described in Section 3; We have developed virtual prototype of WEDM machine Ewis; In Section 4, virtual prototype is used for machining simulation in CAD/CAM system
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