Zone: Turning Tools

Turning The Tough Stuff

Turning the ToughOne of this aerospace shop’s many specialties is producing ring-shaped parts that are thin-walled, complex, tightly toleranced and made of difficult-to-machine materials such as Inconel, titanium or high-temperature alloys. Turning jet engine parts doesn’t get much tougher than this.

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10 Considerations When Using Grooving Tools

The dynamics of chip formation and evacuation make grooving in turning operations unique in almost every way. Innovative insert designs and coatings can improve your grooving operation, but to be completely successful, there are some other things you should know.

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10 Considerations When Using Grooving Tools
12/19/2008 Modern Machine Shop
The dynamics of chip formation and evacuation make grooving in turning operations unique in almost every way. Innovative insert designs and coatings can improve your grooving operation, but to be completely successful, there are some other things you should know.
Multitasking Tools Cut More Than Grooves
12/18/2008 Modern Machine Shop
Once, grooving tools were only thought of for making grooves or cutting off the part. Improved designs, materials and coatings make them perfect sense as all-purpose tools under the right conditions.
Lathe Toolholder Allows Quick Insert Changes
12/10/2008 Modern Machine Shop
This lathe toolholder allows insert changes in a matter of seconds with the push of a button. Its cam-actuated lever provides a uniform insert clamping pressure of 8,000 psi.
Commitment To Quality
12/8/2008 Production Machining
Increased demands for quality have led tooling manufacturers in a new direction.
Best Of Both Worlds
11/24/2008 Production Machining
The proven advantages of wiper technology for indexible insert cutting tools continue to evolve. This article looks at some of them.

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Overview Of:

Turning Tools

Turning involves a fixed and non-rotating cutter, because in turning, the workpiece spins instead of the tool. Turning tools typically consist of a replaceable insert in a turning tool body.

The insert can be distinctive in a number of ways, including shape, material, coating and geometry. The shape can be round to maximize edge strength, diamond-shaped to allow a sharp point to cut fine features, square, or even octagonal to increase the number of separate edges that can be applied as one edge after another wears out. The material is typically carbide, though ceramic, cermet or diamond inserts can be applied to more demanding applications. A variety of protective coatings also help these insert materials cut faster and last longer. The geometry of the insert generally relates to its cutting angles, though the tool may also include a complex chipbreaker pattern that prevents long unbroken chips from becoming entangled in the cut.

The turning tool body generally does not feature quite so much engineering, but even here there are a range of choices for fine-tuning the process. Quick-change tools involve modular bodies that allow replacement tool bodies to be swapped in and out and locked in place quickly to minimize setup time. The turning tool body can also channel high-pressure coolant more effectively to the cutting edge of the tool.

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