Product Information

						Product description
Track rollers used for the caterpillar tracks of heavy equipment.

Production equipment
Processed in a large press (3,500 tons and 4,500 ton).

Scope of work
Producing the product of which outer diameter is up to 320 mm and its weight is up to 60 kg.

Technical characteristics
Product strength improvement achieved by forming a flow-line as well as saving materials costs and machining costs, by creating a concave shape in the hot forging process, by developing an “opening and closing forging method” for the part shown in red.

Patent contents
A product that obtained the patent “A forging device using an open and shut type mold”. Developed a work method that enables product extraction by dividing a circular mold into four parts, creating a concave shape with the mold divided in four using a specially designed spring device, and making it open/close more than the outer diameter.					

						Product description
Yoke Shaft

Production equipment
5 Inch, 7.5 Inch Upsetter

Scope of work
Distance between hors - Max. 200 mm, shaft length - Max. 1,000 mm

Technical characteristics
Creating a product shape with one-time forging using the upsetter, instead of the two times forging work method that creates a final shape in the hammer forging machine after forming the depressed area shape in the upsetter.

Patent contents
"Die for upsetter to make yoke shaft" A product that produces the yoke shaft part with a one-time process by molding the yoke shaft, which has been produced by friction welding after u-shape yoke part and shaft part work inside the forging upsetter using the researched and developed forging upsetter mold device.					

						Product description
York recoil spring yoke

Production equipment
Asymmetrical forging products

Scope of work
Scope of work Left and right width - 250-340 mm, height 120-200 mm

Technical characteristics
A forging product developed from a casting product. It’s a recoil spring yoke for excavators that used to be made of casting. However, the collection ratio was as low as 60% when produced by casting due to the characteristics of the product, causing a defect rate higher than 10%, while product delivery was delayed due to the problem of materials supply. Development as a forging product was started by customer’s request. The stability of product production was secured by improving mold troubles. The product was selected/used as a 6-sigma improvement theme by the person in charge of purchasing in the customer company by solving the problem of cost saving, quality improvement, and delayed delivery.