A substrate includes a multilayer substrate body in which a plurality of circuit bodies are laminated in a laminating direction through insulating layers and are interlayer connected via a connected conductor formed on each of the insulating layers, and a magnetic body that is arranged in the laminating direction while at least a part of or all of the magnetic body sandwiches the circuit bodies. Each of the circuit bodies includes at least a first circuit body and a second circuit body. The first circuit body is formed of a first extending portion and a first folding portion. The second circuit body is formed of a second extending portion and a second folding portion.

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.

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 numerical controller controlling a wire electric discharge machining device of the present invention is configured to perform perpendicular setting of the wire electrode with respect to the workpiece while the wire electrode is inserted into and passed through a machining hole of a workpiece and calculate the inclination of the workpiece; drive an XY axis and detect short-circuit; obtain the diameter of the machining start hole; subsequently drive the upper wire guide and the lower wire guide respectively and detect the short-circuit and calculate the location of the center of the upper portion of the machining start hole and the location of the center of the lower portion of the machining start hole; and, based on these calculated values, calculate the correction amount for the workpiece on the upper wire guide surface of the upper wire guide and the correction amount for the workpiece on the lower wire guide surface of the lower wire guide.

A numerical controller controlling a wire electric discharge machining device of the present invention is configured to perform perpendicular setting of the wire electrode with respect to the workpiece while the wire electrode is inserted into and passed through a machining hole of a workpiece and calculate the inclination of the workpiece; drive an XY axis and detect short-circuit; obtain the diameter of the machining start hole; subsequently drive the upper wire guide and the lower wire guide respectively and detect the short-circuit and calculate the location of the center of the upper portion of the machining start hole and the location of the center of the lower portion of the machining start hole; and, based on these calculated values, calculate the correction amount for the workpiece on the upper wire guide surface of the upper wire guide and the correction amount for the workpiece on the lower wire guide surface of the lower wire guide.

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.

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.

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.

The present invention is a power supply control apparatus that controls pulse discharge occurring in a machining gap in an electric discharge machine. The power supply control apparatus includes: a voltage level detecting device that detects the voltage level of a discharge voltage generated in the machining gap; a voltage level comparator hat compares the voltage level with a voltage level reference value, and outputs a comparison result; and a determining unit that, on the basis of the comparison result, determines whether a discharge pulse is abnormal in a designated one of a plurality of determination modes. The determination method can be designated during machining.