Method and device for wire electrical discharge machining
AssigneeAgie Charmilles SA
InventorRiccardo Di Campli
Life of this patent
Estimating the term…
Abstract
A method for controlling a wire electrical discharge machining (WEDM) process, in which the wire traveling speed VW is adapted in-process, while cutting. The method includes, determining the size of the crater occurring at each said determined position of each discharge along the engagement line of a wire and a work piece, and the current wire traveling speed; and continuously comparing the wire wearing model with one or more wire wearing limits, and adjusting the wire traveling speed according to the comparison of the actual wire wearing model and the one or more wire wearing limits. The wire electrical discharge machining process is conducted with reduced wire consumption, safely, efficiently and profitably.
Claims15
A method for controlling a wire electrical discharge machining (WEDM) process, in which the wire traveling speed is adapted in-process, wherein the method comprises:
- a. determining the position of a plurality of discharges along the engagement line of a wire and a work piece,
- b. determining the size of a crater provoked at the wire by said plurality of discharges,
- c. creating a real time wire wearing model based on
- i. the position of said plurality of discharges along the engagement line of the wire and the work piece, and
- ii. the size of the crater occurring at each said determined position along the engagement line of a wire and a work piece, and
- iii. the current wire traveling speed,
- d. continuously comparing the wire wearing model with one or more wire wearing limits, and
- e. adjusting the wire traveling speed according to the comparison of the actual wire wearing model and the one or more wire wearing limits.
A method for controlling a wire electrical discharge machining (WEDM) in which the wire traveling speed is adapted in-process, wherein the method comprises:
- a. determining the number of discharges and the discharge pulse energies,
- b. creating a wire wearing model based on
- i. the number of discharges and type of discharges, whereas the types of discharges are characterized by the respective dis-charge pulse energy,
- ii. the size of craters provoked at the wire by the respective type of discharges
- iii. the current wire traveling speed, and
- c. continuously comparing the wire wearing model with one or more wire wearing limits, and
- d. adjusting the wire traveling speed according to the comparison of the actual wire wearing model and the one or more wire wearing limits.
Dependencies are inferred from the claim text.