Tungsten Information

Tungsten Carbide Boring Cutter Installation

Details: Category: Tungsten Information; Published on Tuesday, 04 November 2014 18:45; Hits: 285

Tungsten carbide boring cutter, a kind of boring tool with a round handle, can be applied in inner bore processing, chambering, and so on, and is specially used in rough, semi-finish and finish processing towards existing bores.

Installation steps of tungsten carbide boring cutters:

I. Tied the sheath to the shank by bolt.

II. Install the fine boring cutter base on the sheath.

III. Install the clump weight on the sliding block.

IV. Cutting tools adjustments:

(1) Loosen the bolt.

(2) Make rough adjustments towards the tool apron.

(3) Tighten the bolt.

V. Adjust the clump weight in the same way and adjust the dynamic balance.

VI. Tighten the bolt, try boring, measure the size of the processed bore and compare it to the required size, and then figure out the deviation value of number.

VII. Loosen the bolt and screw the dial.

VIII. Tighten the bolt and rework the workpiece to the required size.

Precautions during tungsten carbide boring cutter installation:

Do not overexert the adjustment towards fine boring cutter bits; do not touch places sealed up by red lacquer; do maintenance regularly and add lubricating oil.

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Reins Tungsten Nail Sinkers

Details: Category: Tungsten Information; Published on Tuesday, 04 November 2014 08:56; Hits: 296

When it comes to weighting a lure, there is no other choice but reins tungsten nail sinkers to get the job done! In doing so, you can easily get the bait down to the "perfect" level where it has a chance to be consumed in one gulp! With its popular barbs, reins tungsten nail sinkers are sure to stay firmly in place throughout the cast.

Reins tungsten nail sinkers help you fine tune your baits, they are used on soft plastics or on wood plugs. Commonly, rein tungsten nail sinkers can be used in the nose of a worm to give you just the right action, or maybe you need to balance that frog or plus to swim just right.

Why Tungsten

Tungsten, with the density rages from 16.5 to 18.5, is widely used by more and more manufacturer in making reins nail sinkers. Reins tungsten nail sinkers have better penetration power compared with other materials made nail sinkers, such as lead, brass, est. Besides, reins tungsten nail sinkers are environment friendly, which is an important factor nowadays.

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Tungsten Carbide Angle End Mill Introduction

Details: Category: Tungsten Information; Published on Monday, 03 November 2014 18:23; Hits: 303

Tungsten carbide angle end mill, installed in vertical milling machines, is normally used in milling grooves of relatively small workpieces. It is a kind of rotary cutting tool with on or more teeth and is compatible with processing materials like die steel, cast iron, carbon steel, alloy steel, tool steel and general steel materials.

During milling, each tooth of tungsten carbide angle end mill intermittently cuts off workpiece allowance in proper order. It is used in machining grooves and step surface with its teeth on the circumference and end surface. When it works, it cannot feed along the axial direction, but when there are end teeth through the center, it can do axial direction feeding.

Characteristics of tungsten carbide angle end mills:

I. It is used in milling metal grooves and step surface.

II. It is widely used in rough, semi-finish and finish milling of workpieces.

III. Its cutting edge, made through complete grinding, is of smooth active surface, little chip removal resistance, high intensity and high precision.

IV. It can work normally with overload under high temperature up to 450℃-550℃.

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Tungsten Carbide Die Milling Cutter Introduction

Details: Category: Tungsten Information; Published on Monday, 03 November 2014 18:19; Hits: 302

Tungsten carbide die milling cutter, also called tungsten carbide high-speed mixed milling cutter or tungsten carbide rotary file, can be compatible with high-speed electrical machines or air tools. It can be used in the finish machining of various kinds of metal die cavities and inner bore surface of machine parts; cleaning the trimming, burr, welding line of castings, forgings and welding; chamfering, rounding, groove and keyway machining of different types of machine parts; sleeking of impeller passages; and cleaning of pipeline.

Tungsten carbide die milling cutters gain wide applications in mechanical, automobile, shipping, chemical, carving and other industrial sectors, and achieve good effects. Its main applications include:

I. Finish machining of various kinds of metal mould cavities, like shoe mold.

II. Handicraft carving of various kinds of metal and nonmetal.

III. Cleaning the trimming, burr, welding line of castings, forgings and welding, such as in casting machining factories, shipyards, automobile factories, etc.

IV. Chamfering, rounding, groove and keyway machining of different types of machine parts, such as in machinery factories, repair factories, etc.

V. Sleeking of impeller passages, such as in automobile engine factories.

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Tungsten Carbide Cutting Tool CVD Coating Technology Development

Details: Category: Tungsten Information; Published on Monday, 03 November 2014 18:17; Hits: 292

Tungsten carbide cutting tool coating previously usually adopted high-temperature chemical vapor deposition (GTCVD) technology. According to the constituents of the sediment, clean gases like H2、CH4、N2、TiCl4、AlCl3、CO2, after mixed in a certain proportion, are applied on the blade surface of tungsten carbide cutting tool with certain temperatures (generally 1000~1050℃) in the deposition system under ordinary or negative pressure. Up to now, HTCVD is still the most popular technology in this area. In addition, there is also anther technology called plasma chemical vapor deposition (PCVD) applied in tungsten carbide cutting tool coating. Due to its relatively low technological temperature (700~800℃), it reduces the bend resistance of the blade.

Later on, multilayer coating with different combinations have been developed, such as TiCN/Al2O3、TiCN/TiC/TiN、TiCN/TiC/Al2O3、TiCN/Al2O3/TiN、TiCN/TiC/Al2O3/TiN、TiCN/Al2O3/TiCN、TiN,TiC/TiCN/TiN、TiN/TiCN/TiN and so on.

We can clearly see that in recent years, TiCN or TiN are often used as the bottom layers due to the improvement of tungsten carbide substrate. For example, gradient structure is taken, so that it is possible to take TiCN or TiN as the bottom layers. Besides, TiN is not suitable to be applied alone, because TiN has less improvement in its hardness compared with tungsten carbide. That is why TiN has to be used in combination with TiC, TiCN and Al2O3.

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High-Density Heavy Metals for Radiation Shield

Details: Category: Tungsten Information; Published on Monday, 03 November 2014 14:02; Hits: 284

Heavy metal alloy composed primarily of tungsten. Heavy metals manufactured by our advanced powder metallurgy feature very high density and excellent radiation shielding as well as mechanical strength and machining/processing characteristics. These metals have been well accepted as alternative materials of lead that has adverse impact on environment. They are also used for various weights and rotors and for their excellent shielding performance, in a variety of fields including medical equipment and nuclear power plants.

Compared with other metals, our heavy metals are far superior in terms of absorption of high-energy beams and radiation. They have extremely low gas emissions in high vacuum and are superior in mechanical strength and processing workability. They are ideal materials for such applications as medical equipment, nuclear power plants and other radiation shielding applications.

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Tungsten Alloy for Efficient Radiation Protection

Details: Category: Tungsten Information; Published on Monday, 03 November 2014 13:59; Hits: 279

The tungsten alloy reliably shields against X-rays and gamma radiation. With its new production process and great expertise in the materials field, PLANSEE has made the manufacture of shielding components particularly cost-effective.

Whether in the world of medical or industrial X-ray technology, radiotherapy or nuclear power stations: Wherever high-energy radiation is used, it is vital to protect people against it.

The denser the material, the better able it is to protect from radiation. That is why heavy elements absorb X-rays and gamma radiation particularly well. Lead is still the most frequently used shielding material. Because it is a very soft material, it is mostly used only in combination with support structures made of steel.

Lead is a toxic material that is harmful to the environment and humans. The onerous recycling process makes lead expensive despite the low initial procurement costs. Many enterprises are therefore looking for a suitable alternative for providing reliable radiation protection.

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Tungsten Nail Sinkers

Details: Category: Tungsten Information; Published on Monday, 03 November 2014 13:41; Hits: 328

Nowadays, a popular approach to weighting down soft plastics is the advent of small tungsten nail sinkers to add small amounts of weight internally to soft plastic lures.

Tungsten nail sinkers are thin and nail-like weights insert into soft-plastic baits, like jerk baits, sticks or finesse worms. Tungsten nail sinkers can be used to balance rigged jerk bait for a natural-looking fall. Another option is tail-weighting finesse worms for a tail-first, fall that can trigger hits from shy, following fish.

Tungsten nail sinkers are perfect for adding a small amount of weight to your soft plastic lures. An adjustment in weight can make the difference when conditions on the water change or you want to modify your bait's action. Easily clipped down with standard line clippers, tungsten nail sinkers are an ace-up-your-sleeve. The ability to make quick changes helps you stay one step ahead.

Each active tungsten nail sinker comes with three factors: a sharp tip to penetrate any section of the soft plastic lure, a narrow shank profile to minimize damage to the soft plastic lure and a set of conical barbs along the length of the shank to securely fasten the tungsten nail sinkers into the body of your soft plastic lure.

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Manufacturers Should Keep an Eye on Tungsten Carbide Cutting Tool Wear

Details: Category: Tungsten Information; Published on Friday, 31 October 2014 18:54; Hits: 364

Tungsten carbide cutting tool is a kind of consumable product and can wear out during cutting. Its wear can has three types: mechanical wear, thermal wear and chemical wear.

During cutting performance, tungsten carbide cutting tools wear out gradually when they cut down chips from workpieces. It has two main forms of wear: abrasion and breakage. Abrasion is gradually generated when tungsten carbide cutting tools conduct cutting performance continuously. Breakage includes brittle breakage and plastic breakage, such as tipping, cataclasm, desquamating and cracking.

The tungsten carbide cutting tools, after wearing out, will have lower cutting precision and higher surface roughness, which may result in the rising of cutting force, increasing of cutting temperature and even sympathetic vibration. And when these happen, its cutting ability will be greatly affected. Tools generally have three periods of wear: primary wear period, normal wear period, and rapid wear period. When the cutter has worn out to a certain extent, it can not be used anymore, which is called the blunt point. The time counted from a totally new tungsten carbide cutting tool being put into use to it reaching its blunt point is called tool service life.

The breakage of tungsten carbide cutting tools, like abrasion, is also a representation of tool losing its efficiency. If the cutter suffers too much force, it may break quickly and lose its cutting ability. In the above mentioned case, the so-called breakage happens. Actually, breakage is just a kind of abnormal abrasion.

When there is abnormal wear in tungsten carbide cutting tools during machining, immediate measures should be adopted, or it may cause workpiece scrap or even machine tool damage, etc. Therefore, manufacturers should keep a close eye on tungsten carbide cutting tool wear condition.

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Tungsten Carbide Turning Tool Sharpening

Details: Category: Tungsten Information; Published on Friday, 31 October 2014 18:49; Hits: 312

Tungsten carbide turning tool sharpening should be conducted by adopting correct posture and methods, and paying attention to related safety knowledge.

Correct sharpening posture and methods towards tungsten carbide turning tools:

I.Operators shall stand on the side of grinding machines, in case of getting hurts due to grinding wheel burst.

II.Operators shall separate their two hands to a certain distance when holding the tool, and clamp their waist with tow elbows so that shake generated while grinding will be reduced.

III.When conducting major and minor flank grinding, turning tools should be placed at the horizontal center of grinding wheel with tool nose sticking up about 3°~8°. After touching the grinding wheel, the tungsten carbide turning tool should move right and left in a horizontal direction. When the turning tool leaves the grinding wheel, it should rise for a little in case that the cutter edge ground is damaged by the grinding wheel.

IV.When conducting flank face grinding, the back of the toolbar should tilt to the left with a tool cutting edge angle.

V. When conducting minor flank grinding, the back of the toolbar should tilt to the right with an end cutting edge angle.

Safety knowledge during tungsten carbide turning tool grinding:

I.Before grinding, operators shall check if there is any crack on the grinding wheel and whether the grinding wheel spindle nut has been tightened. And the grinding wheel should be tried first before being put into use in case that it bursts and hurts operators.

II.Operators shall wear protective glasses during grinding in case that gravel and scrap iron would run into their eyes.

III.Operators shall not stand right in front of the rotating direction of the grinding wheel in case of accidents.

IV.When conducting small tool bit grinding, the tool bit shall be placed into the toolbar so that operators can hold it tightly.

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