HSSvs cobalt vscarbide

Cobalt can be run even faster than high speed steel tooling. It can also be used in most hardened and abrasive materials such as bronze, stainless steel, cast iron, and titanium.However, a cobalt bit will not retain its edge sharpness for as long as a solid carbide bit, and it will be more prone to brittle failure than high speed steel tooling in non-rigid set ups.If you have a desire to run at faster running parameters than what high speed steel tooling offers, or if you are running in a hardened material, cobalt may be your next consideration. While it will typically have a higher cost than high speed steel tooling, it would be a more economical option than solid carbide.

When it comes to high speed steel tooling, this will be the most economical choice among the three substrate options. The above image shows a Titan USA High Speed Steel Reamer.High speed steel is known for its high working hardness and excellent toughness. While maintaining a rigid set up should always be a priority, high speed steel tooling can excel in situations where a rigid set-up can’t be obtained, and where there is potential for excessive tool holder overhang. The toughness of high speed steel over cobalt and solid carbide makes it less prone to brittle fracture or chipping. These tools can be used in a variety of ferrous materials, such as steel and iron, and non-ferrous materials such as brass, copper, and aluminum alloys.  However, high speed steel should not be used in hardened versions of these materials.This substrate is not without its drawbacks, too, though. High speed steel tooling will need to be run at slower cutting speeds than cobalt or solid carbide tooling, which could potentially make it less ideal for high production runs.

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Although solid carbide tends to be the most expensive substrate option, the ability to run at high speeds and feeds allows you to reduce your cutting time. This increased productivity can prove to be more economical for higher production jobs. Solid carbide tooling is going to have the highest heat and wear resistance, allowing the tooling to last longer and require less replacement.

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The web of the drill bit increases in thickness toward the shank (fig. 12-23). When the drill bit has been shortened by repeated grindings, the web must

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Further, solid carbide is a good choice when dealing with hardened materials or high temp alloys. For example, it can be used in hardened steels, titanium alloys, and nickel alloys up to 45RC. When paired with material specific tool geometries and coatings, solid carbide can even be used in materials up to 68Rc.

A combination of both faults can result in a broken drill bit, and if the drill bit is very large, permanent damage to the drilling machine. The hole produced (fig. 12-22) will be oversize and often out-of-round.

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Do you know which cutting tool substrate is right for you? Popular cutting tool manufacturers, such as Titan USA, oftentimes sell high speed steel, cobalt, and solid carbide cutting tools – but which is right for your application? This article will serve as a guide to the benefits of each material, and the best choice for specific applications.

3. THE PROPER LOCATION OF THE DEAD CENTER (fig. 12-21). Equal angles but lips of different lengths results in oversize holes and the resulting "wobble" places tremendous pressures on the drill press spindle and bearings.

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For most situations, cobalt is going to offer an intermediate option when compared to high speed steel and solid carbide options. The image above shows a Titan USA Cobalt Reamer.

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Solid carbide will be the premier material substrate offered for most cutting tool selections, as it offers high edge sharpness that allows tooling to be run at the fastest running parameters offered among the three material substrates. The above image shows a Titan USA Solid Carbide Reamer.

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Cobalt vscarbide drill bits

2. LENGTH AND ANGLE OF LIPS. The material to be drilled determines the proper point angle. The angles, in relation to the axis, must be the same. Fifty-nine degrees has been found satisfactory for most metals. If the angles are unequal, only one lip will cut and the hole will be oversize (fig. 12-20).

When browsing the different material options offered by Titan USA, this article can act as a helpful guide for choosing the right tool for your application.  For more information on the different tooling styles offered in high speed steel, solid carbide, and cobalt, please visit the Titan USA website at https://www.titancuttingtools.com/ .

One downside to solid carbide tooling is that its high hardness can make it more susceptible to brittle failure and therefore may not be a good choice when dealing with non-rigid set ups. For example, solid carbide can be more prone to chipping or breaking when encountering interrupted cuts, vibrations, or shocks.

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1. LIP CLEARANCE (fig. 12-18). The two cutting edges or lips are comparable to chisels. To cut effectively, you must relieve the heel or that part of the point back to the cutting edge. Wh.bout this clearance, it would be impossible for the lips to cut. If there is too much clearance, the cutting edges are weakened. Too little clearance results in the drill point merely rubbing without penetration. Gradually increase lip clearance toward the center until the line across dead center stands at an angle of 120 to 135 degrees with the cutting edge (fig. 12-19).