We solve difficult problems with integrated support from carbide materials to finished product manufacturing!
Our cemented carbide machining technology
Processing example of ultra-small hole with diameter 0.070mm
Machining details
Small hole EDM machining
Machining shape
φ0.070×0.8㎜
Processing equipment
Small hole processing machine（Sodick K3BL）
Machined carbide grade
EW10
*We are capable of this processing for all materials except stainless steel.
Customer's request
This is an example of a customer's request to improve the accuracy of fine hole drilling. The details were as follows:
-To process hole with dimensions of φ0.07×0.8mm.
-To select material with high wear resistance.
Unable to find a vendor that could handle the difficult ultra-precision hole processing, the customer contacted us given our wide range knowledge of processing cemented carbides.
Machining details
Considering the customer's requirements, we proposed our EW10 grade, a material with high corrosion resistance, and moved on to processing. Processing a hole with diameter of 0.07 mm and depth of 0.8 mm is challenging, and the following points needed to be considered.
-There is a risk of a "drum-shape" dimension forming in the direction of the hole depth.
-The hole diameter is very small that the preparation of the smallest electrode diameter is required for machining.
Regarding the bulging in the direction of hole depth, we have minimized it by using our long-cultivated machining know-how.
In addition, using the smallest diameter electrode causes various problems such as bending and faster electrode wear. This problem has also been solved by our experienced machinists. After repeated trial processing, we were able to achieve a hole diameter of 0.069 to 0.075 mm and roundness of 0.001 to 0.002 mm, resulting in meeting the customer's requirements.
Results of machining and service
In this case, we achieved customer's challenging required hole dimensions of φ0.07×0.8mm through fine-hole processing. Our machining technology is highly evaluated, and we continue to receive requests for micro-machining of cemented carbide.
At Everloy, our strength lies in high-precision micro-machining and fine-hole machining of cemented carbides. Micro-machining of cemented carbide requires machining know-how based on past machining data and knowledge of optimum conditions obtained through repeated trial machinings. As a provider of cemented carbide materials, we are also experts in the characteristics of each material and will respond to your requests by processing in accordance with the material. Feel free to make inquiry for fine hole machinings down to φ0.07mm, as shown in this case.
Our cemented carbide machining example
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