Tungsten Carbide Reamer Ⅸ

In part 8 we know that a shell reamer is designed for reaming bearing or the similar with full length flutes, while a morse taper reamer is applied to finish morse taper sleeves which includes finishing reamers and roughing reamers. Here we explain combination reamer as another kind of tungsten carbide reamer.

Combination reamer
 
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This combination reamer was made for a long run, tight tolerance electronic parts.

A tungsten carbide combination reamer has two or more cutting surfaces. The combination reamer is precision ground into a pattern that resembles the part’s multiple internal diameters. The advantage of using a combination reamer is to reduce the number of turret operations, while more precisely holding depths, internal diameters and concentricity. Combination reamers are mostly used in screw machines or second-operation lathes, not with Computer Numerical Control (CNC) machines because G-code can be easily generated to profile internal diameters.

Combination reamers can be made out of cobalt, tungsten carbide, or high speed steel tooling. When using combination reamers to ream large internal diameters made out of material with lower surface feet per minute, carbide tips can be brazed onto a configured drill blank to build the reamer. Tungsten carbide reamer requires additional care because it is very brittle and will chip if chatter occurs. It is common to use a drill bit or combination drill to remove the bulk of material to reduce wear, or the risk of the part pulling off on the combination reamer.

 (To be continued. This article is divided into several parts and this is part 9, for part 8 please refer to http://news.chinatungsten.com/en/tungsten-information/79632-ti-10180;for part 10 please refer to http://news.chinatungsten.com/en/tungsten-information/79659-ti-10186)

 

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Tungsten Copper Electrode

Due to the increasing requirement of mould and intractable materials, tungsten copper has been widely used in electrode. Tungsten copper has many advantages, such as higher precision, lower wastage, high MRR (Material Removal Rate) as well as it can be finishing and roughing at one time. At the present, tungsten copper electrode plays an important role electrical discharge machining (EDM). According to incomplete statistics, Japan has 19.6 tons in tungsten copper electrode consumption in 1994 year, which accounts for a quarter of the aggregate consumption of tungsten copper (74.5 tons).

Except good conductivity, high MRR and easily to be machining, tungsten copper electrode is supposed to have:

1. Good arc ablation resistance.

2. Uniformity and Density.

3. Diverse shape and should be suited to small demands.


Tungsten Copper Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-copper.com/
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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Tungsten Military Applications

Tungsten, in Military applications, is used in bullets, as a hardening agent to produce armor penetrating rounds. It is also used for fragmentation to create a devastating effect as its hardness remains intact as it shreds through targets. Tungsten is also used in cube and ball form in anti-personnel ordnance, ranging from grenades, to mines and rockets, these added tungsten cubes and balls are highly destructive due to their retention of their hard, solid shapes as they impact. Tungsten alloys are also used in defensive plating, due to their hardness and strength. Tungsten carbide and other alloys are also used to make penetrators for weaponry, to enhance their effectiveness.

Another widely used application of tungsten in defense is the various weighting applications used in helicopters and other aircraft and armored vehicles. Helicopters often use this material to weight their rotors, noses, and skids. This metal is widely used in these applications because of its hardness and size to weight ratio it is a perfect material for weighting and protection.

 

 

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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Tungsten Copper Electrode Properties

W and Cu Physical Properties

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Tungsten Copper Electrode Properties (G38320-87)

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Tungsten Copper Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-copper.com/
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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Tungsten Carbide Reamer Ⅷ

In part 7 we know that rose reamer is secondarily used as softening tungsten carbide reamer and tapered reamer is used to make a tapered hole so that a tapered pin can be fixed in.And here we explain shell reamer and more taper reamer which are all tungsten carbide reamers.

Shell reamer
Shell reamers are designed for reaming bearing and other similar items. They are fluted almost their whole length.
 
Morse taper reamer
A morse taper reamer is used manually to finish morse taper sleeves. These sleeves are a tool used to hold machine cutting tools or holders in the spindles of machines such as a drill or milling machine. The reamer shown is a finishing reamer. A roughing reamer would have serrations along the flutes to break up the thicker chips produced by the heavier cutting action used for it.
 
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(To be continued. This article is divided into several parts and this is part 8, for part 7please refer to http://news.chinatungsten.com/en/tungsten-information/79631-ti-10179)

 

Tungsten Carbide Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Molybdenum News & Molybdenum Price: http://news.molybdenum.com.cn

 

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