Sanluo Precision is a well-known EDM Machining manufacturer and supplier in China, capable of offering high-precision, specialized custom services for customers worldwide. It supports the customization of complex and difficult parts. Sanluo Precision is a professional EDM supplier, investing heavily in high-precision electrical discharge machining. EDM machining technology uses the principle of pulsed spark discharge between the electrode and the workpiece to erode materials, and can process hard materials and complex shapes that are difficult to machine by traditional cutting methods. It can provide professional technical services for complex cavities, narrow slots, micro-holes, and high-hardness materials, and deliver high-quality products to customers.
EDM is a non-contact processing technology that uses the instantaneous high temperature generated by pulsed spark discharge between the electrode and the workpiece to remove materials. It can process various conductive materials and has an accuracy of ±0.002mm. Ultra-precision processing can reach ±0.0005mm, and the surface roughness can be as low as Ra0.02μm. It is divided into sinker EDM machining and mirror EDM machining, and is widely used in precision molds, medical devices, automotive, and other fields. Sanluo Precision specializes in providing regular and customized EDM processing services, covering sinker EDM machining, mirror electrical discharge machining, complex structures and deep blind holes precision EDM, proficiently using red copper, graphite, copper-tungsten alloy and other electrode materials, mastering core technologies such as precise parameter setting, multi-electrode rough-to-fine step processing, and mirror HQSF processing, which can meet the VDI3400 high mirror surface requirements, and relying on a complete detection system to ensure stable dimensions and surface quality, providing customers with high-quality and stable precision EDM processing services. It produces tens of thousands of EDM parts annually, winning industry and customer recognition with stable accuracy and reliable quality, truly demonstrating the professional strength of Chinese manufacturers and suppliers.
As a professional EDM Machining manufacturer and supplier, it should be proficient in discharge performance and possess the ability to precisely and stably control the dimensional accuracy. The machining process of Sanluo Precision factory can process various conductive materials, almost without hardness restrictions, including quenched steel (HRC 60 or above), hard alloy (WC-Co), titanium alloy, nickel-based high-temperature alloys and other traditional difficult-to-machine materials for cutting. EDM has no cutting force, which is particularly suitable for thin-walled parts, easily deformed parts and high-precision micro-structures. It can not only ensure shape accuracy but also reduce the risk of workpiece deformation. For shapes such as deep narrow slots (with a depth-to-width ratio of up to 100:1), irregular holes, complex cavities, sharp corners and edges (with an R angle of approximately 0.02mm), Sanluo Precision provides customers with high-precision, repeatable special processing services through stable discharge control and fine electrode design.
Sanluo Precision is equipped with a variety of electrical discharge machines: The maximum processing travel of the electrical discharge forming machine is approximately 300×400×350mm, with a maximum workpiece weight of 100kg, and the processing accuracy can reach ±0.002mm; The maximum processing thickness of the slow wire cutting machine is about 200mm, with a taper of up to 30°, wire diameter ranging from 0.03 to 0.3mm, and the processing accuracy is approximately ±0.001mm, suitable for high-precision mold parts and precise part contours; The fast wire cutting machine is used for rough processing and large-sized parts, efficiently removing excess material. The micro electric discharge machine has a minimum electrode diameter of approximately φ0.02mm, and a minimum hole diameter of up to φ0.03mm, targeting micro-structural parts such as nozzles, micro-hole plates, and screen meshes, forming a complete EDM and micro EDM machining equipment platform. Mirror surface electrical discharge can achieve surface roughness Ra0.1–0.4μm, significantly reducing the polishing amount of mold cavities, truly demonstrating the equipment strength of high-end precision EDM.
Without a systematic process design and parameter optimization, EDM Machining is difficult to balance both precision and efficiency. The Sanluo Precision factory considers the discharge gap, electrode wear, and parting strategy when designing the electrode during the stage of cavity structure. Using 3D CAD modeling, it fabricates high-precision electrodes through a CNC machining center, laying the foundation for subsequent discharge. The process distinguishes between rough machining, fine machining, and mirror surface machining: rough machining uses a larger current and wider pulse width to quickly remove material; fine machining reduces the current and pulse width, controlling the surface roughness within Ra0.1–1.6 μm; mirror surface machining has an current less than 1A, achieving a near-mirror effect of Ra0.1–0.4 μm. The working fluid uses kerosene or dedicated electro-discharge fluid, and through cooling rinsing, filtration (with an accuracy of about 10 μm), it promptly removes the slag to avoid secondary discharge causing surface burn. In deep hole machining, the electrode rotates in conjunction with high-pressure working fluid rinsing, enabling φ0.05–50mm, deep-to-diameter ratio ≥ 10 deep hole discharge, maintaining good perpendicularity; in the micro-processing range of φ0.02–1mm, the electrode can be used for micro holes, micro slots, and micro structures, with an accuracy of approximately ±0.001mm, providing process assurance for high-precision EDM.
In the aerospace field, the dovetail groove surfaces of nickel-based high-temperature alloy turbine blades are complex. After EDM finishing, the dimensional accuracy can be controlled within ±0.003mm; the fuel nozzle has a diameter ranging from φ0.02 to 2mm, densely distributed, and through electrical discharge drilling, good consistency is maintained. In the precision machinery field, the gear forming tools are processed by EDM to harden steel HRC60, with tooth shape accuracy of approximately ±0.001mm; in the medical field, the edge area of the surgical knife mold is electro-discharged for fine processing, with surface roughness Ra approximately 0.1μm, balancing sharpness and durability. Sanluo Precision has provided customized EDM Machining services for enterprises such as Huawei, BYD, and Foxconn.
