Technology introduction Round Trim® (burr-less cutting process)

Round trim®
(burr-less cutting)

Our unique press cutting technology, "Round Trim®," is an innovative processing method that leaves no burrs on the product.
This technology has been applied to products with strict quality requirements, such as current collector parts for automotive lithium-ion batteries, and has enabled mass production.
It can also handle special shapes that cannot be processed using conventional deburring processes, and by combining V-shaped notches and external pressure control after cutting, it forms smooth edges.
"Round Trim®" can be applied to a wide range of fields, not just lithium-ion battery components.

Automotive battery current collector parts

If there are burrs or metal powder in the illustrated area
This may cause a battery short circuit.

Normal press processing side

Cannot be completely removedBurrs fall off and metal powder is generated

Round Trim® (burr-less cutting process)

Patent: Patent No. 6448482
Trademark: Registration 5948077

1.Shearing process (rough trim)

2.Double-sided V-groove + R

Approximately 0.1mm R on both sides
(less than 10% of plate thickness)

3.round trim

Cutting the remaining part after R moldingBurrless cutting completed