Exploring the: Toolholders Zone

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Published: 7/19/2010

Chip Control
I discovered that chip control actually means controlling chips as they are being cut off of a workpiece.

Published: 6/17/2010

Faster Centerline Drilling with Continuous Pecks
One of the most difficult small-part turning operations does not involve a turning tool at all, but instead involves a drill.

Published: 4/19/2010

The Importance of Float During Micro Reaming
Micro reamers require a floating holder to compensate for any machine positioning inaccuracies.

Published: 11/2/2009

Quick Change for Screw Machines
New quick-change dovetail form toolholders bring lean operations at a lean price.

Published: 7/24/2009

How Do You Get The Cutting Parameters Right For Small End Mills?
A reader recently asked about speed, feed rate and depth of cut when using small tools in steel.

Published: 5/15/2009

The Knob Problem
The retention knob is an unmistakably critical component of the machining process. However, the tightening of the knob itself can lead to the toolholder not seating securely in the machine. You may be losing tool life to knob tightness without even ...

Published: 5/29/2008

Measuring Taper For Toolholders And Spindle Applications
Companies concerned about strict quality requirements regularly check toolholder tapers for wear or inaccuracy because these conditions can jeopardize the results of a critical operation. However, a shop can check tapers quickly and reliably with ai...

Published: 2/27/2008

Swiss-Type Machines: More Than Just A Lathe
CNC Swiss-Type machines have more capability built in than ever before. Many of these capabilites can be accessed using attachments that increase the throughput of the machine tool, improve the quality of the work coming off the machine and reduce o...

Published: 12/17/2007

Detecting and Correcting Unbalance in Toolholders for High Speed Machining
This white paper from American Hofmann Corporation examines the relationship between unbalance and toolholders used in high speed machining centers. The paper looks at sources of unbalance, effects of unbalance, correcting the unbalance and determin...

Published: 3/24/2006

Don’t Forget The Drawbar
The force that holds the toolholder in the machining center's spindle can weaken over time. If you haven't checked drawbar force in a while, this may be the weak link in your process.