US 12,472,570 B2
Electrical discharge machining apparatus
Chwung-Shan Kou, Tainan (TW); and Wen-Yung Yeh, Tainan (TW)
Assigned to HIGHLIGHT TECH CORP., Tainan (TW)
Filed by HIGHLIGHT TECH CORP., Tainan (TW)
Filed on May 12, 2022, as Appl. No. 17/742,444.
Claims priority of provisional application 63/252,652, filed on Oct. 6, 2021.
Claims priority of provisional application 63/188,478, filed on May 14, 2021.
Claims priority of application No. 111117038 (TW), filed on May 5, 2022.
Prior Publication US 2022/0362870 A1, Nov. 17, 2022
Int. Cl. B23H 1/04 (2006.01); B23H 11/00 (2006.01)
CPC B23H 1/04 (2013.01) [B23H 11/003 (2013.01)] 35 Claims
OG exemplary drawing
 
1. An electrical discharge machining apparatus comprising:
a carrier, the carrier being provided with a jig, the jig comprising at least one carrier plate for carrying at least one to-be-machined object, wherein the to-be-machined object is defined with a machining target area; and
an electrical discharge machining (EDM) unit, the electrical discharge machining (EDM) unit applying a discharge energy to the machining target area of the to-be-machined object through at least one discharge electrode with a non-uniform electric field distribution, thereby machining the to-be-machined object along the machining target area,
the at least one discharge electrode has a guide bump, the guide bump corresponds to a guide groove of a pulley of the electrical discharge machining (EDM) unit, so as to use the guide groove to guide the guide bump.