Tooling & Workholding

Turning Tools
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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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hard machining

Success Factors for Hard Turning


A rigid machine and hard cutting edge are the beginning. Other considerations relate to system rigidity and keeping the cutting force steady.

form tool

Video: Form Tools On CNC Lathes


Form tools are traditionally associated with non-CNC machines, but in certain applications they make sense on modern machines as well.

Custom step drill

See The Tool's Value Instead Of Its Cost


This company is embracing high-performance tooling on its turning centers. The "sticker shock" is no reason not to do this. In one case, though, the shop found a way to limit the cost of the tool and increase productivity at the same time.



Grooving, Cutoff and Multidirectional Turning

By: Chris Felix
This single-sided tool is designed to handle a range of applications, including cutoff, grooving, deep grooving, face grooving, side turning and profiling, in a single platform, simplifying the tooling selection process.

Skiving

Artistry with Skive Tools

By: John Detterbeck
Oliver Wendell Holmes said, “All limitations are self-imposed.” This statement often holds true as machinists apply their creativity in skiving applications.

Iscar IC806

Turning Grade Resists Wear in Inconel 718

By: Jedd Cole
Iscar’s IC806 is a Sumotec PVD-coated turning grade for machining high-temperature alloys, especially Inconel 718.

AH8000 Series PVD Grades and Chipbreakers for Heat Resistant Alloys

By: Lori Beckman
The two AH8000 grades include AH8015, the first choice grade with well-balanced wear and fracture resistance and the AH8005, the high hardness grade with excellent wear resistance.

Carmex Mini Tools

Multifunction Tool Line Available in Inch Dimensions

By: Jedd Cole
Originally introduced in metric configurations, Carmex’s Mini Tools line is now available in standard inch dimensions.


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