Electrical Discharge Machining (EDM)

With Tridi online production supply platform, reach the production precision of Turkey's most competent industrial organizations from a single point. Get an instant quote for all your requests, from prototyping to mass production, from precision tolerances to roughing, according to your needs.

  • doneAccurate Quotation

  • doneAlways Available Capacity

  • doneOnline Order Tracking

  • doneISO 2768 High Quality Standards

  • doneDesign-Specific Machining Capability

  • done Functional Prototyping

Get your quotation and start manufacturing today.

What is Wire EDM?

In the process of manufacturing with wire electrical discharge machining, an alloy wire suitable for cutting is used to cut the part to be machined and the cutting process is performed with the electro-erosion method. For obtaining a proper cutting, the workpiece is manufactured in the dielectric fluid environment created with the water supply units in the machine. To cut and remove the conductive materials from the part, manufacturing is performed with arc, which is known as electrical discharge.

Deionized water allows the machined part and the electrode to cool, while also serving to remove the parts that break off from the workpiece from the environment. Liquid pressure prevents the molten metal from sticking to the surface while ensuring low surface roughness and high cutting accuracy.

With the wire EDM method, you can manufacture deep pockets, marks, turning tools, broaches, gears and various molds. It is an advanced electrothermal machining technology for metallurgical applications, such as the examination of weld sections of the part, the production of samples for mechanical tests (tensile, fatigue, wear, etc.) or the detection of chemical changes on the casting piece.

What is Die Sinking EDM?

Die sinking electrical discharge machining is a CNC machining method that enables the manufacturing of forms that cannot be fully machined with conventional CNC machining methods.(turning, milling etc.) Shapes the workpiece immersed in the dielectric fluid by abrading it, utilizing electron migration (discharge) between the workpiece and an electrode (brass, copper, graphite, etc.) that serves as a tool.

By creating current sparks through the electrode, gears with complex internal structures, helical gears and small channels with complex structures can be machined on the workpiece. In addition, pressurized and injection cast molds, forged molds, carvings and concavities for cutting tools can also be manufactured with sinking erosion technology.

From Traditional Manufacturing to Digital Transformation

Design Library

Manufacturer Segmentation

Automatic Pricing

Manufacturing Diversity

High-Quality Control Mechanisms

Manufacturing Supervision

Digital Monitoring

AluminiumStainless SteelMild Alloy SteelOther Metals
6061-T6303Mild Steel 1018Brass C360
6082304LMild Steel 1045Copper C101
7075-T6316LAlloy Steel 4130Copper C110
5083416Alloy Steel 4140Titanium Grade 1
5052420Alloy Steel 4340Titanium Grade 2
2014430Tool Steel A2Inconel 718
2017440CTool Steel A3
2024301Tool Steel D2
6063Tool Steel H13
7050Tool Steel O1

With the use of EDM technology, you can achieve repeatable, precision tolerances as low as 0.01 mm. We use ISO 2768 standards.

Finishing Options

Different finishing options can be preferred according to the place and situation where the machined piece will be used. Some processes can be applied to make the model smoother, brighter, matte, and corrosion-resistant. Some of these processes are listed below.

As Machined

The pieces are delivered as machined. The burrs are removed and sharp corners are cleaned.


The pieces are sandblasted using glass beads. Machining marks are removed, a homogeneous and matte surface is obtained.

Satin Finishing

The surfaces of the pieces are cleaned using 400-600 sandpaper. A homogeneous smooth and striped surface is obtained.

Raw Material + Anodized Coating

After machining, anodized coating is applied to prevent corrosion and increase abrasion resistance. Coating can be performed using standard color options.

Sandblasting + Anodized Coating

Matte anodized coating is applied to the surface after homogeneous sandblasting. You can select any color you want among the standard colors to coat the pieces. Applies to aluminum materials only.


The finishing process is applied to the pieces manually. You can get a brighter and smoother surface. It may not be applied to the surfaces remaining inside. It is not recommended for pieces where measurement accuracy is important.

Electrostatic Powder Coating

Powder coating is ideal for materials to be used outdoors. Paint with the specified RAL code can be applied. It can cause thickness differences in pieces.


Different plating options can be applied to different materials. For example chromium plating, nickel plating, zinc plating, etc.

Satin Finishing + Anodized Coating

Anodized coating after satin finishing is ideal for homogeneous appearance.

Oxidation / Blackening Process

It is applied to steel materials. It reduces corrosion resistance and light reflection.

Advantages of EDM

The electrodes used in CNC machining with wire & die sinking EDM generally do not require additional treatment as those are specifically designed considering the surface quality and geometry of the final product and this is considered the final machining process.

Since wire EDM is a non-contact machining method, no shear force is applied to the workpieces. That is why it is a machining technology that makes it possible to machine small and critical parts without burrs. With wire EDM, materials with high electrical conductivity and low melting temperature can be machined more effectively.

Machining speed varies according to the amount of energy in each spark and the time interval of each spark. Molds made of hard metals can be easily machined.

With die sinking EDM technology, molds with highly complex profiles can be manufactured. Blind details such as holes or gaps that are not open at the lower end can be manufactured. It can start machining from anywhere on the workpiece without being affected by flanges or open holes.

Machinability of Custom-Design Parts

Ability to Machine Without Damage

High-Quality Surfaces

Excellent Precision

Ability to Easily Machine Heavy Metals

How Does It Work?

Get an Instant Quotation for CNC Machining

Request an instant quotation for CNC machining by uploading your model.

Online Manufacturability Analysis

See if the model you uploaded can be processed by CNC machines. Revise your model in line with the feedback.

Online Order Tracking

You can see the current stage of your orders through our system.

Platform Model
  • Pricing

    Tridi.co makes the most accurate pricing for the models you want to manufacture thanks to its rule and machine learning-based software.

  • Fragmented Manufacturing Demand

    You may need to get services for more than one technology or material in the same project. With tridi.co, you can solve your entire manufacturing process through a single platform.

  • Access to Capacity

    Thanks to our wide manufacturing partners network, we always have available capacity for your works. With our order-supplier matching software, we offer the most suitable capacity for you at tridi.co.

  • Quotation Periods

    With its software infrastructure, Tridi.co prices the models in the most accurate way and calculates the manufacturing times. Quotation processes are shortened from weeks to days, from days to minutes.

Partner Network
  • done

    Access over a hundred suppliers through one platform

    While you get the best service, we will take care of tracking, quality control, delivery, and all communications

  • done

    Rapid manufacturing and multiple simultaneous manufacturing orders

    Run all manufacturing works at the same time, thanks to the software-supported platform and manufacturing partners network

  • done

    Accessing to Wide Range of Materials and Technologies

    Access to different fabrication technologies, finishing options, and custom materials

  • done

    Matching with the Right Manufacturer

    Match with the most accurate supplier thanks to our AI infrastructure that performs model and manufacturer analysis

  • done

    Accessing Suppliers The Outside Of Your Network

    Access to qualified manufacturers from all over Turkey

  • done

    Transparent and Accurate Pricing Prepared by AI

    Get accurate manufacturing prices thanks to our rule-based and AI-based software

Welcome To Tridi

Contact An Expert

Contact An Expert