• TOPICS
    • Design
    • Manufacturing
    • Inspection
    • Heat Treating
    • Lubrication
    • Materials
    • The Gear Industry
    • Gears by Type
  • MAGAZINE
    • Current Issue
    • Departments
    • Archives
    • Subscribe
    • Advertise
  • NEWSLETTER
    • Subscribe
  • VIDEO
    • Gear Technology TV
      • Ask the Expert Live
      • Revolutions
    • Industry Videos
  • BLOGS
  • BUYER'S GUIDE
  • NEWS and EVENTS
    • Product News
    • Industry News
    • Events
  • ADVERTISING
    • Brand Awareness
      • Print: Display Advertising
      • Online: Web Banners & Keyword Banners
      • Online: Native Advertising (Sponsored Content)
      • E-mail: Custom, White Papers & Webinars
      • E-mail: Newsletter Sponsored Content (Native Advertising)
    • Response & Lead Generation
      • Online: Sponsored Content (Native Advertising)
      • E-mail: Newsletters
      • E-mail: Newsletter Sponsored Content (Native Advertising)
      • E-mail: Custom, White Papers & Webinars
      • Online: Buyers Guide
    • Print Advertising
      • Print: Display Advertising
      • Print: MPT Expo Showstoppers
      • Print: Buyers Guide
      • Print: Manufacturing sMart
      • Print: Specifications
      • MPT Expo Show Guide Advertising
    • Online Advertising
      • Online: Web Banners & Keyword Banners
      • Online: Native Advertising (Sponsored Content)
      • Online: Buyers Guide
      • Online: Specifications
    • E-mail Advertising
      • E-mail: E-Newsletters
      • E-mail: Newsletter Sponsored Content (Native Advertising)
      • E-mail: AGMA Industry News
      • E-mail: Custom, White Papers & Webinars
      • E-mail: Specifications
    • Special Promotions
      • Print: MPT Expo Showstoppers
      • Print: Buyers Guide
      • Print: Manufacturing sMart
      • MPT Expo Show Guide Advertising
  • CONTACT US
  • AGMA
    • Membership
    • Events
    • Education
    • Emerging Technology
    • AGMA Media
    • Standards
Subscribe
  • Sign In
  • Create Account
  • Sign Out
  • My Account
Home » Kennametal Releases Latest Helical Milling Cutter

Kennametal Releases Latest Helical Milling Cutter

October 17, 2018

Kennametal recently released its newest helical milling cutter, the Harvi Ultra 8X.

Using a 95 mm (3.74 in.) axial depth of cut, 20 mm (0.78 in.) radially, and a feedrate of 423 mm/min (16.65 ipm), the 80 mm (3.15 in.) diameter Harvi Ultra 8X  helical milling cutter from Kennametal recently worked through a difficult aerospace superalloy. Tim Marshall, senior global product manager for indexable milling, has tested the Harvi Ultra 8X with a variety of customers, pushing the limits of the new cutter on everything from 15-5 PH to cast iron to Aermet 100 (high strength steel) and seeing outstanding results with each.

“Kennametal developed the Harvi Ultra 8X to meet two distinct needs,” Marshall says. “The first came from the aerospace industry, which thanks to the large numbers of aircraft being built today requires the highest metal removal rates possible but still achieving excellent tool life. At the same time, machine tool builders and users alike are asking for tools able to withstand higher cutting speeds but generate lower machining forces, so as to reduce wear and tear on machine components during extreme cutting conditions. The new Harvi Ultra 8X does all that, and a lot more besides.”

Marshall said it was designed to predictably remove 20 cubic inches (328 cm3) of Ti-6Al-4V each minute while attaining 60 minutes of tool life per cutting edge. To do this, Kennametal combined a number of innovative technologies into this cutting tool solution including a double-sided yet positive rake insert, a unique AlTiN+TiN PVD coating that provides robust resistance to thermal fatigue, a higher quality steel for improved stiffness and rigidity under high cutting forces, a unique BTF46 (bolt taper flange) connection that provides deflection resistance and a variable helix design that breaks up the harmonics that lead to chatter, further improving tool life, part quality, and throughput.

“We’ve optimized everything about the Harvi Ultra 8X,” said Marshall. “The flutes and the coolant nozzles assure maximum chip flow, something that’s very important when you’re removing this much material—without it, the chips get jammed up and you’re facing catastrophic failure. Our KCSM40 grade has proven to be a top performer in high-temp alloys, but we also offer several equally excellent grades for other workpiece materials.”

Manufacturing Processes Milling Product News
  • Related Articles

    Kennametal Releases Latest Helical Milling Cutter

    Gear Tooth Surface Roughness of Helical Gears Manufactured by a Form Milling Cutter

    Holroyd Tool Management Center Improves Accuracy and Repeatability of Milling Large Helical Rotors

  • Related Events

    Milling Strategies for Challenging Materials

    AGMA Fundamentals of Worm & Crossed Axis Helical Gearing

    AGMA Design Basics for Spur and Helical Gears

Free Gear Technology Subscriptions
Subscribe
Free Gear Technology Subscriptions
Subscribe
FEATURED VIDEO
  • Helios1
    Forest City Gear Taps Helios Gear for Custom Cutting Tools
June 23, 2022
RECOMMENDED
  • Precision Equals Performance at ZPE GripTec

    October 12, 2022
    gt0922_Page_28_Image_0003.jpg
  • State of the Powder Metal Industry

    October 12, 2022
    gt0922_Page_30_Image_0001.jpg
  • The Afterglow of Furnaces North America 2022

    October 12, 2022
    gt0922_Page_20_Image_0001.jpg
  • Reigniting the Educational Infrastructure

    December 5, 2022
    gt1122_Page_20_Image_0001.jpg
  • Profile: Continuing Education and Training with the AGMA

    December 5, 2022
    gt1122_Page_26_Image_0001.jpg
  • Reigniting the Educational Infrastructure

    December 5, 2022
    gt1122_Page_20_Image_0001.jpg
  • Profile: Continuing Education and Training with the AGMA

    December 5, 2022
    gt1122_Page_26_Image_0001.jpg
  • Precision Equals Performance at ZPE GripTec

    October 12, 2022
    gt0922_Page_28_Image_0003.jpg
  • Subscribe
  • Advertise
  • Contribute
  • AGMA
Powered byAGMA
Copyright © 2023 Gear Technology
  • Privacy Policy
  • Contact