World''s Largest Auto Parts Supplier Relies on Kennametal Precision Surface Solutions

aerospace, energy, medical, and others requiring high-precision components know

that removing particle left at intersected holes and ensuring no micro

contamination is a quality challenge that cannot be overlooked. Thousands of components can be machined in seconds but can take minutes to get finish completely. Production bottlenecks, increased costs, and longer time to market are among the results.

Kennametal is a global leader dedicated to providing Precision

Surface Solutions. TEM (thermal energy machining) are solving increasingly complex finishing challenges faced by manufacturers around the world.

Delphi-TVS is a joint venture between Delphi Corp. (Troy, Michigan USA) and T.V.

Sundaram Iyengar & Sons (Kancheepuram, India). Delphi is among the largest

automotive supplier in the world and Delphi-TVS is the largest automotive systems

manufacturer in India.

“Being a global company, we have a great responsibility to maintain world-class

quality standards in our products,” says T.N. Umasankar, head of the Delphi-TVS

manufacturing engineering department. “We manufacture diesel fuel injection

parts – high-volume components. The main issue is burr removal on crosssectional

holes from previous machining operations.”

Delphi-TVS faced many issues: High component volumes approaching a million a

year made hand-deburring unaffordable and the high-precision nature of diesel

fuel injectors made TEM solution a necessity.

After much investigation, the company chose Kennametal TEM (thermal deburring) solution.

“There have been hundreds of installations and continued refinement of our TEM

equipment and process,” says Bruno Boutantin, global marketing manager at

Kennametal Extrude Hone. “One factor remains constant: TEM is a rapid, lowcost,

high-production process that can process a million or more parts per year by

a single machine.”

“The TEM process is particularly appropriate for high-volume applications where

conventional deburring departments struggle to keep pace,” Umasankar agrees. “lt

instantaneously cleanup a large number of intersecting holes, threads and hardto-

reach areas in a flash, literally in 20 milliseconds. Its ability to fire multiple

components at the same time increases its capacity and cost-effectiveness

enormously. Any other process, including high-pressure water jet, will not provide

this value.”