A wire electrical discharge machine includes a filter for removing machined swarf produced by electrical discharge machining from a working fluid, and a heating device for heating the working fluid stored inside the filter.

A wire electrical discharge machine includes a filter for removing machined swarf produced by electrical discharge machining from a working fluid, and a heating device for heating the working fluid stored inside the filter.

A wire electrical discharge machine includes: a mounting table having a placement plane on which a workpiece can be placed; a first guide portion and a second guide portion for stretching a wire electrode therebetween. The first guide portion is integrally equipped with a probe. The relative position in the placement plane between the probe detecting its abutment with the workpiece and the first guide portion before moving the relative position between the first guide portion and the second guide portion is stored as an offset. This offset is corrected based on the tilt information indicating the tilt state of the workpiece relative to the placement plane. Thus, it is possible to obtain the corrected offset in accordance with the tilt state of the workpiece after changing the relative position between the first guide portion and the second guide portion.

A machining condition estimation device includes a machining information database that stores machining information data in which data related to a machining condition satisfying a machining content and a required specification are associated with data related to the machining content and data related to the required specification. A machining condition estimated to satisfy a desired machining content and the required specification is derived based on the machining information data stored in the machining information database, and a simulation of a wire electric discharge machine is executed based on the derived machining condition. The machining condition is evaluated based on an execution result of the simulation, and the machining information database is updated based on a result of the evaluation.

A machining condition estimation device includes a machining information database that stores machining information data in which data related to a machining condition satisfying a machining content and a required specification are associated with data related to the machining content and data related to the required specification. A machining condition estimated to satisfy a desired machining content and the required specification is derived based on the machining information data stored in the machining information database, and a simulation of a wire electric discharge machine is executed based on the derived machining condition. The machining condition is evaluated based on an execution result of the simulation, and the machining information database is updated based on a result of the evaluation.

An electrostatic discharge machining fixture includes a fixture body, two or more electrically conductive face contacts seated in the fixture body, and two or more electrically resistive point contacts seated in the fixture body. The electrically conductive face contacts and the electrically resistive point contacts define a 3-2-1 alignment system to locate an additively manufactured article relative to the fixture body during an electrostatic discharge machining operation. Electrostatic discharge machining arrangements and methods of supporting additively manufactured workpieces during electrostatic discharge machining operations are also described.

A system for removing one or more three-dimensional workpieces manufactured in additive manufacturing environment from a substrate plate is disclosed. The system includes an adjustable support tooling apparatus, a grinder, a cut-machining device, a work tank, a wire discharge machine and coolant pump filtration system. The adjustable support tooling apparatus is supporting a three-dimensional workpiece while it is being detached from a substrate plate by cutting device. The adjustable support apparatus of the present disclosure is also easily adaptable to various weights and geometric of workpiece. The improved substrate plate preparation machine in additive manufacturing enables to complete a job at one place, wherein the job is cutting the work piece and grinding the uneven cut surface of the substrate plate, thereby the ground substrate plate can be reused.

A compensation quantity acquisition device acquires vibration of the movement target in a second axis direction, orthogonal to the first axis direction when the movement target is moved in the first axis direction, acquires a positional frequency characteristic by performing Fourier transformation on the acquired vibration in the second axis direction, performs inverse Fourier transformation on the positional frequency characteristic from which the component of position independent frequency in the second axis direction (that occurs independently of a position of the movement target in the first axis direction) has been removed, to recover the vibration of the movement target in the second axial direction as position dependent vibration, and acquires positional compensation quantity of the movement target in the second axis direction that cancels the position dependent vibration.

In wire-electrical discharge machine and a numerical control apparatus thereof and a numerical control apparatus for controlling a machine tool, optional minute blocks are automatically created in front of and behind a connecting point, which is a joint of a block to which an offset command is instructed, and an offset value is exchanged between the minute blocks so that a correct offset value is set in a desired block.

A seal assembly includes an annular base, a spring, a shoe, a first channel, a seal cover, and a seal. The spring includes a beam and is connected to the annular base. The shoe is disposed radially inward of the annular base and connected to the spring. The shoe includes an upstream portion, a downstream portion, and a lip connected to and extending radially outward from the upstream portion of the shoe. The spring extends from the annular base to the shoe. The first channel is positioned between the shoe and the beam of the spring. The seal is disposed between the seal cover and the shoe such that a downstream face of the seal is in contact with an upstream face of the shoe.