• July 5, 2022
  • Machine Tools
  • Cutting Tools
  • Software
  • Metrology
  • Accessories
  • Mechatronics
  • About us
  • Contact us
  • REGISTER
  • SIGN IN
www.cnctimes.com logo
  • News
  • CT+
  • Webinar
  • Knowledge Center
    • INDUSTRY UPDATES
    • INTERVIEWS
    • VIDEOS
    • TECHNICAL ARTICLES
    • CASE STUDIES
    • PRODUCT SHOWCASE
    • BLOGS
    • SUCCESS STORIES
    • NEWSLETTERS
  • Start Your Subscription
  • Register
  • Sign in

Information

Please login to give the feedback.

Subscription Plans

Subscription Type
Duration
Months
News
Articles
Blogs
Case Studies
Videos
Product Updates
Webinar
Amount
CT
Lifetime
Lifetime
Full Access
Limited Access
Full Access
Limited Access
Limited Access
Limited Access
No Discount
INR 0.00
CT+
6 Months
6 Months
Full Access
Full Access
Full Access
Full Access
Full Access
Full Access
5% Discount
INR 599.00
CT+
Annual
12 Months
Full Access
Full Access
Full Access
Full Access
Full Access
Full Access
10% Discount
INR 999.00

Subscription Plans

Subscription Type
Duration
Months
News
Articles
Blogs
Case Studies
Videos
Product Updates
Webinar
Amount
CT
Lifetime
Lifetime
Full Access
Limited Access
Full Access
Limited Access
Limited Access
Limited Access
No Discount
INR 0.00
CT+
6 Months
6 Months
Full Access
Full Access
Full Access
Full Access
Full Access
Full Access
5% Discount
INR 599.00
CT+
Annual
12 Months
Full Access
Full Access
Full Access
Full Access
Full Access
Full Access
10% Discount
INR 999.00
Successfully registered. Please check your email to activate account.

Registration
  • Sign In



Sorry Captcha Unsuccessful!!

Sign In


OR
If your not registered user first Register
  1. Home
  2. News
  3. Kennametal solves the age-long problem of tool stability when drilling in deep cavities, alongside tall shoulders, and past bulky fixtures

Kennametal solves the age-long problem of tool stability when drilling in deep cavities, alongside tall shoulders, and past bulky fixtures

24 April, 2018
  • Tweet
  • share via email
Your comment has been posted.
We have sent you a verification email. To verify, just follow the link in the message.
Some technical error. Please try again.

By Niraj M Wanikar, Chief Editor, CNCTimes.com, 2018-04-24 11:13:00

Reaching deep inside a workpiece to drill holes can be a real bear. You’ve tried taper length and aircraft drills, but even those made of solid carbide are apt to wander when hanging out of the chuck unsupported. Maybe you’ve combatted the problem with special extended-reach drill holders, although these are not only expensive, but limited to specific fixed lengths. A double angle or ER-style collet extension might be worth a try, yet these aren’t exactly compact, and any runout or imbalance is exaggerated at long length to diameter ratios—if drill walk isn’t bad enough, you’re now left fighting the holder itself as it flexes and vibrates. Hole accuracy becomes questionable, tool life is poor, and productivity suffers as you reduce feed rates in an attempt to keep the drill running true. Surely there’s a better way. 

Decades of Experience
Kennametal thinks so. The Latrobe, PA tooling manufacturer recently developed a hydraulic chuck extension that meets these challenges while also increasing flexibility and reducing costs. Michael Schuffenhauer, Senior Global Product Manager Tooling Systems at Kennametal, says the company has been producing hydraulic chucks for the past 30 years, and has become quite knowledgeable about the technology behind them as a result. This new tool leverages that extensive experience. 

“We asked our customers, ‘How do you drill holes in deep cavities and complex pockets? Do you have problems with reaching past clamps and fixtures?’” he says. “We wanted to know how they were dealing with these issues, and the effectiveness of their existing solution. Then we set out to develop a better one.”

Happiness through Hydraulics
Kennametal’s new line of hydraulic chuck (HC) extensions meets that goal handily. Michael Schuffenhauer lists a number of key features that make the product unlike any other currently available. These include:
-Runout to within 3 µm (0.00012 in.) at 2.5 x D (half that of its nearest competitor), providing exceptional tool life and hole quality.
-Because it’s balanced to G2.5 at 25,000 rpm, vibration is greatly reduced at higher spindle speeds.
-Vibration is further dampened by the hydraulic clamping mechanism within the chuck body. 
-Internal channels make through the tool coolant easy to setup—no hoses or adapters needed.
-An ultra-slim design allows, for example, a 12-mm drill to be clamped in a 20-mm chuck body (or a ½-inch drill in a ¾-inch shank). 
-A variety of reducer sleeves is available for both inch and metric sizes, providing maximum flexibility at minimum cost. 
-Drill and reamer shanks down to 3 mm (0.125 in.) can be accommodated.
-Suitable for rotating and stationary applications alike. 

“Our HC Extensions are for customers that need the flexibility of a modular system but want to avoid the expense and limitations of a custom solution, as well as the constraints that come with traditional toolholders,” Michael Schuffenhauer says. “We believe the improved performance and ease-of-use offered by this new product will soon make it the leading drill extension on the market. It’s quite simply a great design.” 

Cruising Easy Street
Ease of use means no need for heat shrink machines. Tool lengths are adjustable up to 10 mm (0.393 in.) axially. A specially-ground chamfer on the end of the shank eases insertion into the hydraulic chuck. Prepared wrench flats provide safe and convenient handling, without the need for a torque wrench. A one-piece design eliminates concerns over contamination and downtime due to maintenance. And most importantly, the clamping mechanism eliminates operator to operator tightening variations.

“That’s an important point,” notes Michael Schuffenhauer. “With traditional collet nut systems, the amount of torque applied during tool changes can vary widely, increasing the chance of runout or tool slippage. The same can be said for competing hydraulic extension chucks. But with our solution, there’s no chance of over or under-tightening. It’s not only extremely accurate, but it’s extremely accurate every time.” 

A Peek Inside
For all its performance, the design is simple—just set any h6 tool shank inside the HC Extension and turn the clamping screw on the end of the unit until seated. This causes a hydraulic piston within the unit to move forward, compressing the locating sleeve, and gripping the tool. 

Again, total runout as measured 2.5 x D from the chuck face will not exceed 3 µm (0.00012 in.), and the extension’s superior balance characteristics make it an ideal choice for today’s high rpm machine tools.

At the end of the day, says Michael Schuffenhauer, customers want to achieve the safest, most economical, and predictable way to machine parts, hopefully with tooling and equipment that is easy to use. The HC Extension meets all of these criteria and more. “If you look at it from a high level, the HC Extension gives you the flexibility of a collet system with the precision of shrink fit, and easier setup than either. You get the best of all worlds. And because of the HC’s extreme accuracy and balance, you don’t have to settle for substandard tool life and performance as would with purely mechanical clamping systems. We’re very pleased to have it as part of our portfolio.”

  • Follow @CNCTimes

Captcha is required.
Sorry Captcha Unsuccessful!!

Latest News

  • 05 July, 2022

    MTI’s wireless gap measurement probe system is ideal for rotating machinery

  • 05 July, 2022

    VERICUT announces partnership with Adeptmec

  • 05 July, 2022

    Three common misconceptions about five-axis machining

  • 05 July, 2022

    Renishaw introduces a dedicated sustainability team to lead its new sustainability strategy

  • 05 July, 2022

    WAGO combines PLC and remote I/O into compact controller

  • 05 July, 2022

    Advanced IIoT gateways with seamless Azure IoT Edge Integration

  • 05 July, 2022

    CoroMill® MH20 for high feed pocket milling

  • 02 July, 2022

    Addition of new Radii- R1.6 and R2.0 to the double-sided inserts for the WWX400 Series

  • 02 July, 2022

    Release of Mech-Eye UHP-140 for micron-level accuracy

  • 02 July, 2022

    Mitsubishi Electric to establish new factory in India for factory automation

  • 02 July, 2022

    CIMdata publishes simulation and analysis market report

  • 02 July, 2022

    Secure fixing of irregularly shaped workpieces

  • 02 July, 2022

    New dimensions for electronics and semiconductor manufacturing

  • 02 July, 2022

    MakerBot committed to make 3D printing accessible for all

  • 01 July, 2022

    Hybrid Hexapod from ALIO gives precision repeatability

  • 01 July, 2022

    Siemens and NVIDIA to enable industrial metaverse

  • 01 July, 2022

    Use of banana paper contributes to all SDGs

  • 01 July, 2022

    Altair releases unlimited data analytics appliance

  • 01 July, 2022

    TRUMPF shows laser solutions for the complete battery production process chain

  • 01 July, 2022

    Global metrology software market driven by high demand for quality control

  • 01 July, 2022

    Welsh bike manufacturer races ahead with additive manufacturing

Previous Next

Related News

  • 30 June, 2022

    Walter presents new MP6 geometry for turning operations

    Category: Cutting Tools
  • 29 June, 2022

    Sandvik launches insert drill for reliability

    Category: Cutting Tools
  • 28 June, 2022

    AddMeisterDrill Expands Its Drill Diameters for 4.0-4.9 mm

    Category: Cutting Tools
  • 27 June, 2022

    AddInternalCut expands its insert lineup for extended application coverage

    Category: Cutting Tools
  • 24 June, 2022

    New coating for high performance milling in cast iron & compacted graphite iron

    Category: Cutting Tools
  • 23 June, 2022

    Floyd expands small turning series

    Category: Cutting Tools
  • 22 June, 2022

    Easy and reliable way to burnish surfaces with roughness depths

    Category: Cutting Tools
  • 21 June, 2022

    Range of solid round tools from Sandvik

    Category: Cutting Tools

Showroom

  • 17 August, 2019

    Face Milling Machine

    Category: Cutting Tools
  • 17 August, 2019

    Automatic Keyway Milling Machine

    Category: Cutting Tools
  • 18 July, 2018

    Turning Tools

    Category: Cutting Tools
  • 18 July, 2018

    Turning Tools

    Category: Cutting Tools

TESTIMONIALS VIEW MORE

By Niraj M Wanikar, Chief Editor, CNCTimes.com, 2019-11-19 17:57:22We would like to express our sincere appreciation for your service to us.You have provided us best marketing platform through CNCTime...

Mr.Adil Atar, Ass.Mng.Technical Sales & Service: Precision Machinekraft

By Niraj M Wanikar, Chief Editor, CNCTimes.com, 2016-10-21 09:00:00Dedication and determination is key to success and CNC Times team is evident to it - FARO Business Technologies (I) Pvt Ltd

Ms. Amrita Gokhale , FARO Business Technologies

By Niraj M Wanikar, Chief Editor, CNCTimes.com, 2016-08-25 00:00:00Seminar was really very good, please let us know about future seminars. we would like to attend the seminar on "Machining of the mate...

Roshan Deshmukh, Design Engineer - Ashvini Magnets Private Limited

FOLLOW US

TECHNOLOGY FOCUS

    Machine Tools

    • CNC Lathe
    • Boring Machines
    • Drilling Machines
    • Spark Erosion
    • Wire Cut
    • Vertical Machining Centers - VMC
    • Horizontal Machining Centers - HMC
    • Grinding Machines
    • Gear Cutting Machines
    • Additive Manufacturing - RP
    • Multi-Axis Machines
    • Multi-Tasking Machines
    • Welding Machines
    • Presses
    • Laser Cutting
    • Others
    • IIoT

    Metrology

    • CMM
    • VMM ( Vision Measuring Machines )
    • PCMM ( Portable CMM )
    • Measuring Instruments
    • Probing Technology
    • 3D Scanners
    • Roundness Measurement
    • Surface Roughness Measurement
    • Contour Measuring Machines
    • Others

    Accessories

    • Workholding
    • Toolholders
    • Spindles
    • Coolants
    • Others

    Software

    • CAD
    • CAM
    • CAE
    • ERP
    • Inspection Software
    • Reverse Engineering Software
    • MES
    • Others

    Mechatronics

    • Robotics
    • Automation
    • CNC Controllers
    • Others

    Cutting Tools

    • Turning Tools
    • Milling Tools
    • Grinding Wheels
    • Drilling
    • Others

INDUSTRY VERTICALS

  • General
  • Automotive
  • Aerospace
  • Healthcare
  • Healthcare Engineering
  • FMCG
  • Consumer Durable
  • Defence
  • Electronics
  • Oil & Gas
  • Heritage
  • Heavy Engineering
  • Die & Mold
  • Plastic
  • Footwear
  • Jobshop

PROFILE

  • About us
  • Contact us

Terms of use

  • Privacy Policy
  • Payment Policy
  • Refund Policy
  • Terms and Conditions

Follow us on:

Download CNCTimes App:

Play Store
2022 © www.cnctimes.com  | Payment Policy   |   Terms and Conditions
Developed & Maintained by Deven Infotech