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Sinker EDM Service

Sinker Electrical Discharge Machining (Sinker EDM) stands as a cornerstone in precision manufacturing, utilizing electrical discharges to shape and mold conductive materials with extraordinary accuracy.

What is Sinker EDM?

Sinker EDM is often used to machine electrically conductive materials. It can be used to machine super-hard materials and complex shapes that are difficult to machine by conventional cutting methods.

Key Features
Intricate Contours and Cavities
Microscopic Detailing
Complex Tool and Die Manufacturing
Burr-Free and Stress-Free Finishes

Sinker EDM Materials

 The following table shows the common materials for sinker EDM. If you have any other alloy requirements, please contact us.

Aluminum

Aluminum, a versatile lightweight metal, is widely used in various industries due to its excellent corrosion resistance and strength-to-weight ratio.

ALLOYS

Aluminum 2024, Aluminum 2024-T3, Aluminum 2024-T351, Aluminum 5052, Aluminum 5083, Aluminum 6061, Aluminum 6061-T6, Aluminum 6061-T651, Aluminum 6063, Aluminum 7075, Aluminum 7075-T6, Aluminum 7075-T651, Aluminum MIC-6

Brass

Brass, a metal alloy of copper and zinc, is valued for its corrosion resistance and attractive golden appearance.

ALLOYS

Brass C26, Brass C360

Bronze

Bronze is a metal alloy primarily composed of copper and tin, known for its durability, corrosion resistance, and distinct golden-brown hue.

ALLOYS

Bronze C932

Cast Iron

Cast Iron is a versatile metal alloy made by melting iron, carbon, and silicon together. It’s known for its exceptional strength, heat resistance, and wear properties.

ALLOYS

Cast Iron

Copper

Copper, a highly conductive and malleable metal, is essential in various industries. Its excellent electrical conductivity and corrosion resistance make it crucial in electrical wiring, plumbing, and electronics.

ALLOYS

Copper C10, Copper C102, Copper C110

Tool Steel

D2 Tool Steel is a high-carbon, high-chromium steel known for its exceptional wear resistance and toughness. D2’s superior hardness and edge retention make it a valuable choice in industrial settings.

ALLOYS

D2 Tool Steel 

Invar

Invar is a nickel-iron alloy celebrated for its minimal thermal expansion properties. Invar is used in precision instruments, optical systems, and aerospace engineering.

ALLOYS

Invar 36

Inconel

Inconel is known for its exceptional resistance to extreme temperatures, corrosion, and high stress. These materials are prized for their strength and versatility in demanding environments.

ALLOYS

Inconel 625、Inocnel 718

Stainless Steel

Stainless Steel is a corrosion-resistant alloy. Its resistance to rust and staining makes it highly versatile for applications in numerous industries, such as construction, kitchenware, medical equipment, and aerospace.

ALLOYS

Nitronic 6, Stainless Steel 15-5, Stainless Steel 17-4, Stainless Steel 303, Stainless Steel 304, Stainless Steel 316, Stainless Steel 316L, Stainless Steel 410, Stainless Steel 416, Stainless Steel 420, Stainless Steel 430, Stainless Steel 440C

Steel

Steel is composed of iron and carbon, with other elements added for specific properties. It’s renowned for its strength, durability, and malleability.

ALLOYS

Steel 1015, Steel 1020, Steel 1045, Steel 1215, Steel 4130, Steel 4135, Steel 4140, Steel 4340, Steel A36

Titanium

Titanium, a lightweight and corrosion-resistant metal, is highly regarded for its exceptional strength-to-weight ratio. Widely used in aerospace, medical implants, and sporting equipment.

ALLOYS

Titanium Grade 2, Titanium Grade 5

Sinker EDM Surface Finishes

Name
Applicable Materials
Key Features
  • Corrosion Resistance
  • Enhanced Hardness
  • Aesthetic Versatility
  • Electrical Insulation
  • Corrosion resistance
  • Wear and tear resistance
  • Increased durability
  • Improved dielectric strength

All metal and plastic  materials

  • Removal of surface contamination
  • Uniform texture
  • Minimal dimensional changes
  • Eco-friendly
  • Corrosion resistance
  • Prevention of hydrogen embrittlement
  • Improved aesthetics
  • Reduced light reflection
  • Anti-oxidation
  • Salt spray resistance
  • Increased lubricity
  • Promotion of electrical conductivity
  • Reduced surface roughness
  • Improved surface cleanability and brightness
  • Reduced particle adhesion
  • Deburring

All metal materials

  • Increased hardness
  • Increased thermal conductivity
  • Corrosion resistance
  • Great ductility and malleability

All metal materials

  • Wear and tear resistance
  • Great ductility and malleability
  • Increased surface hardness
  • Great solderability
  • Anti-oxidation
  • Improved surface cleanability
  • Corrosion resistance
  • Increased product longevity

All metal materials

  • Corrosion resistance
  • Reduced surface roughness
  • Reducd particle adhesion
  • Deburrieng
  • Improved aesthetics
  • Great Ductility and Malleability
  • Increased durability
  • Corrosion resistance

All metal materials

  • Wear and tear resistance
  • Promotion of electrical conductivity
  • Heat protection
  • Increased color adhesion

All metal materials

  • Anti-oxidation
  • High levelling property and glossiness
  • High corrosion and detergent resistance
  • Improved aesthetics

All metal materials

  • Reduced surface roughness
  • Improved dimensional accuracy
  • Increased durability
  • Increased surface hardness

Sinker EDM FAQs

  • What categories of electrical discharge machining are there?
    There are two main types of Electrical Discharge Machining (EDM) processes - wire EDM and sinker EDM, which are useful for cutting deep pockets and complex features such as gears and holes with a keyway.
  • What is the principle of operation for sinker EDM?
    During the sinker EDM process, the workpiece is immersed in a dielectric fluid. A metal electrode, known as the tool electrode, then initiates electrical discharge machining between itself and the workpiece. This discharge gradually erodes the surface of the workpiece, shaping it as designed.
  • What’s the application range of sinker EDM?
    Sinker EDM is typically used for manufacturing complex 3D shapes, such as molds, models, dies, and workpieces requiring high precision and surface smoothness.
  • What’s electrical discharge machining(EDM)?
    Electrical Discharge Machining, also known as EDM, is a non-contact machining procedure used to make parts where material is removed from a workpiece using electrical spark erosion. EDM is good for more delicate projects as it does not exert cutting forces on the workpiece.