Heavy rain
17 °C
Germantown, Maryland
Heavy rain

Tue Sep 25 2018
none

UNIQUE TURNING INSERT HALVES WEAR

08-05-2018
by 
in 

As the aerospace, automotive, power generation, and other manufacturing industries continue to develop even more robust metals, cutting tool manufacturers must evolve as well with high-performance tooling to tackle these materials.

The KBH10 is one such tool; an uncoated turning insert that offers exceptional wear resistance and very low cutting forces. As a result, many customers are now enjoying double the tool life together with improved part quality.

The KBH10 is a new breed of polycrystalline cubic boron nitride (PcBN) hard turning insert designed specifically for the challenges of today’s demanding marketplace.

Helmut Gremer, senior engineer for global machining technology, says the new insert complements Kennametal’s existing PcBN grades KBH20 and KB5630 by providing the extreme wear resistance needed to successfully turn hardened metals up to 65Rc, particularly where very fine surface finishes are required.

“We’ve seen that many manufacturers are decreasing the allowable tolerances on bearing journals, rings and pistons, gear hubs, and so on,” he says.

“For example, dimensional tolerances of 4μm or less are increasingly common, as are surface requirements better than Ra 0.4μm. This new grade closes the gap for these and other customers that need superior tool life when finishing such parts.”

The KBH10 substrate is completely new, and its PcBN composition is designed for up to 20-percent higher cutting speeds while providing equivalent or in some cases far greater tool life.

Because KBH10 is available in several different geometries and edge preparations, it’s quickly becoming the go-to insert for a wide cross section of manufacturers and their turning applications.

“KBH10 is ideally suited for fine-finishing operations yet is tough enough to handle light interruptions or varying depth of cut operations,” says Gremer.

“And because cutting pressure and therefore heat is reduced, crater and flank wear are likewise reduced, extending tool life. There’s also a lower occurrence of the white layer that plagues many hard part machining operations." 

This last part is accomplished through KBH10’s unique edge preparation. Rather than the traditional waterfall or radiused hone applied to virtually all PcBN cutting tools, Kennametal has developed a special shape that is both sharper and freer cutting than competing solutions yet still tough enough to withstand the rigors of hard turning.

Kennametal
www.kennametal.com

Related news & editorials

  1. 25.09.2018
    25.09.2018
    by      In
    Available in Australia and New Zealand from NHP, the Stratus ztC Edge is a fully virtualised, self-protecting computer platform specifically designed to simplify complex data-intensive applications in industrial automation.
    The device has an in-built virtualisation platform that collates edge data... Read More
  2. 24.09.2018
    24.09.2018
    by      In
    When a major Australian manufacturer of building products realised that the cable chain on an important piece of materials handling equipment was costing thousands of dollars in downtime, the company called Tsubaki to create a superior solution.
    The open-style cable chain was too short, and was... Read More
  3. 21.09.2018
    21.09.2018
    by      In
    Available now from Treotham Automation, iglidur RW370 is a novel polymer material that is qualified to the EN 45545 fire protection standard for use in railway applications. The high-performance igus plastic is available as lubricant- and maintenance-free plain bearings and also as a bar stock for... Read More
  4. 21.09.2018
    21.09.2018
    by      In
    Big Ass Fans reckons that its Haiku range offers the ultimate airflow solution paired with iconic design.
    The fans are designed and manufactured to provide silent, cooling comfort to both indoor and outdoor spaces. With a world reputation for excellence, Haiku uses ultra-efficient DC motors and... Read More