Tungsten Information

Tungsten Carbide Gear Hob Introduction

Details: Category: Tungsten Information; Published on Monday, 27 October 2014 18:45; Hits: 320

Tungsten carbide gear hob is worm-shaped and is the equivalent of a helical gear with few teeth and large helix angle. It performs gear cutting according to the principle of spiral gear meshing through generating method. Tungsten carbide gear hob is the equivalent of a small gear, while the gear being cut is that of a big gear. Gear hob is a spiral gear with large β0 helix angle and only a few long teeth (about 1～3 teeth), making it look like a worm with very small γz lead angle. In order to form a blade, a few chip pocket are milled along the axis on the end face of worm to form the rake face and the tool orthogonal rake, and the tool orthogonal clearance and the flank surface are formed through form-relieved tooth and relief grinding.

Tungsten carbide gear hob can be classified into several types according to its working property: finish hob, rough hob, pre-shaving hob, pre-scraping cutter, pre-grinding hob, involute hob, synchronous belt wheel hob, spline hob and so on. It also can be classified into several types according to its structure: solid hob, welded hob, fabricated hob, and so on.

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Tungsten Gold Plated Bar Story -- Aliens hunting for gold on Earth? 1

Details: Category: Tungsten Information; Published on Monday, 27 October 2014 13:46; Hits: 326

The Earth has become the battleground for extra-terrestrials to further their own political agenda for the future of the planet, a researcher has claimed. In South Africa’s first UFO science and consciousness conference held recently in Johannesburg, the organiser said that the royal political bloodline was a small group of families whose origins could be traced to the first of mankind and who were inevitably in contact with the aliens.

“There’s a battle for Earth by some interesting dark forces,” News24 quoted Michael Tellinger, the organiser as saying.
“All the governments in the world are puppets and instruments to implement the will of a small group of individuals. The royal political bloodline goes back thousand of years,” he said.

According to Tellinger, the South African government was one of the most important puppets of these extra-terrestrials because the country was rich in gold and diamonds.

tungsten-alloy-fake-gold-rod

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Tungsten Carbide Brazed Cutting Tools

Details: Category: Tungsten Information; Published on Friday, 24 October 2014 17:55; Hits: 366

In the tool industry, brazing fastens hard metals -- including tungsten carbides -- to the tips of tools such as saw blades. Cutting tools are often made with tungsten carbide because of its hardness, a desirable quality for cutting tools so they don't wear out and dull too quickly. A variety of tungsten carbide cutting tools on the market are used to sculpt super-alloy components in aircraft engines, cast-iron engine blocks, steel axles, gears and bearings, as well as tungsten carbide saws and drills.

Tungsten carbide Saw Blades

Tungsten carbide saw blades can be used to cut almost all home building materials. They're used to cut stainless steel, wood, particle board, ferrous and non-ferrous metals, laminates and fiber cement board.

Oscillating Blades

Because of the repetitive nature of the oscillating motion, oscillating blades can be tungsten carbide-tipped to prevent the blade from dulling out quickly. Tungsten carbide-tipped oscillating blades are most often used to shave down grout and plaster.

Tungsten Carbide Burs

Welders use carbide burs to grind back and cut into welds. They are manufactured in almost every shank and size you can imagine, from ball-shaped to cone-shaped to the inverted cone.

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How to Drill With a Tungsten Carbide Drill Bit

Details: Category: Tungsten Information; Published on Friday, 24 October 2014 17:26; Hits: 312

Tungsten carbide drill bits are used for drilling into surfaces that can rapidly blunt steel drill bits, like drilling into masonry with hammer-action drills. The tungsten carbide adds to the performance of the drill. The hammer action blows, or heat generated from tough materials like steel, can create strain on drill bits. The tungsten carbide, although brittle, is exceptionally strong.

Instructions to drill with a tungsten carbide drill bit:

1. Install the extra handle onto the side of the drill if your drill has one. If you're using the hammer function, or drilling into tough materials, the extra handle can provide extra control and reduce tiredness. You may find the extra handle in the box that the drill itself was shipped in. It usually screws on.

2. Place the tungsten carbide drill bit into the drill's chuck and select the rotation direction with the switch. Install the battery pack, or plug the drill in, and set the mode setting. For masonry, choose the hammer setting and for hard surfaces like steel, use the non-hammer setting.

3. Set the speed switch to "Medium" for masonry or to "High" for hard surfaces. Hold the drill tightly and place the carbide bit at the point that you want to penetrate the wall or other material.

4. Pull the trigger switch and allow the tungsten carbide drill bit to start boring. Increase pressure by pressing harder on the drill, but don't push so hard that you would lose your balance if the tungsten drill bit snapped. Drill to the depth you need, and, while keeping the drill turning, pull the bit out of the hole. Then release the trigger.

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Tungsten Carbide Bits Vs. High Speed Steel Bits

Details: Category: Tungsten Information; Published on Friday, 24 October 2014 16:49; Hits: 294

Numerous types of drill bits exist, including tungsten carbide and high speed steel. The differences between tungsten carbide bits and high-speed steel bits lie in the qualities of their materials.

Tungsten Carbide Bits

Various types of tungsten carbide bits exist, including those comprised completely of tungsten carbide and those with tungsten carbide tips.

High Speed Steel Bits

High Speed Steel drill bits contain an especially hard and durable type of steel. Thus, HSS bits last for longer than those made from materials such as carbon steel and stainless steel.

Qualities

Tungsten carbide bits exhibit resistance to high temperatures than HSS bits, especially important in drills that rotate at extremely high speeds and generate great heat. Tungsten carbide bits can safely run two to three times faster than HSS bits. However, tungsten carbide bits are more brittle than HSS bits.

Applications

The qualities of drill bits help determine their application. The high-speed ability of tungsten carbide bits makes them suited to time-sensitive operations such as industrial drilling. The relatively high cost of these bits may put them out of the price range of casual tool owners. High speed steel bits work well with other metals as well as wood and plastics. Tungsten carbide bits work well with plastic, metal or wood, though manufacturers usually design the hardness of these bits for a specific application.

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Tungsten Carbide Cylindrical Milling Cutter Introduction

Details: Category: Tungsten Information; Published on Friday, 24 October 2014 16:43; Hits: 308

Tungsten carbide cylindrical milling cutter, with its teeth located on the cutter circumference, is classified into the straight tooth cutter and the end mill with spiral teeth according to its tooth shapes, while into the coarse-tooth milling cutter and the fine-tooth milling cutter according to its teeth number. The coarse-tooth milling cutter with spiral teeth has fewer teeth but with high intensity and larger chip space, and thus is suitable for roughing machining. The fine-tooth milling cutter, on the contrary, is more suitable for finish machining.

The milling characteristics of tungsten carbide cylindrical milling cutter are as follows:

I. The cutter rotates continuously and allows relatively high milling speed which contributes to its high productivity.

II. When doing continuous rotation, every cutter tooth is rotating, therefore, vibration is inevitable. In addition, during high-speed milling, the teeth have to suffer from periodic thermal shock, which can easily result in cracks forming and blade tipping.

III. Because there are many cutter teeth, the total length of the cutting edge is actually quite large, which helps improve tool service life and productivity.

IV. According to different machining conditions, different milling ways can be adopted in order to extend tool life and improve productivity, such as up milling,climb milling, symmetric milling and asymmetry milling.

Tungsten Carbide Cylindrical Milling Cutter

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Tungsten Carbide Plain Milling Cutter Introduction

Details: Category: Tungsten Information; Published on Friday, 24 October 2014 16:42; Hits: 290

There are several main types of tungsten carbide plain milling cutters:

I. Flat-end milling cutters, which are used for roughing milling to remove large amount of unwanted materials.

II. Ball milling cutters, which are used for semi-finish and finish milling of hook face.

III. Formed milling cutters, which includes chamfer cutters, T-shaped milling cutters, toothed cutters, and inner R cutter.

IV. Chamfer cutters, whose shape is like a chamfer, and has two types, with one type being used to mill round chamfers, while another being used to mill oblique chamfers.

V. T-shaped milling cutters, which can be used for T-shaped slot milling.

VI. Toothed cutters, which can be used to mill various kinds of tooth shapes, such as gears.

VII. Rough surface milling cutters, which is specially designed for rapid machining of aluminum copper alloy.

Tungsten carbide plain milling cutter, with high hardness, strong cutting force, can be applied in the machining of difficult-to-cut materials like stainless steel, titanium alloy and so on, and can greatly increase rotating speed and feeding speed, and thus improving the productivity.

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Tungsten Carbide Rough Surface Milling Cutter Introduction

Details: Category: Tungsten Information; Published on Friday, 24 October 2014 16:40; Hits: 296

Tungsten carbide rough surface milling cutter, with one or more teeth, is widely used in the roughing milling machining of slots,etc. It can work with materials like stainless steel, aluminum alloy, die steel, tool steel, carbon steel, alloy steel, cast iron and general iron materials.

Tungsten carbide rough surface milling cutters can be classified into several categories according to its coatings, such as TICN coating, TIN coating, TIALN nanometer super-hard coating, uncoated ones and so on, while there are two types of normal length and super length when according to its length.

The characteristics of tungsten carbide rough surface milling cutter include:

I. Suitable for roughing machining.

II. High machining efficiency.

III. Good chip removal ability with large amount of chip removal.

IV. High metal cutting rate.

Tungsten Carbide Rough Surface Milling Cutter

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Tungsten Carbide End Mill Clamping

Details: Category: Tungsten Information; Published on Friday, 24 October 2014 16:39; Hits: 301

Tungsten carbide end mill in machining center normally adopts spring jacket clamping. During the milling, end mills may sometimes stretch out from toolholders or even fall off, causing the pieceworker scrapping. It is mainly because of the existing of oil slick between toolholder inner hole and the outer diameter of end mill handle, which results in the smaller clamping force. Therefore, before the end mill clamping, the end mill handle and toolholder inner hole need to be cleaned up.

However, even though the handle and the toolholder are both clean, when the end mill diameter is oversize, there could still be blade falling accidents, so when this happens, handles without gaps and the corresponding side lock method should be adopted.

The end mill being clamped may break at the edge of the toolholder during machining, and reason generally is that the toolholder has been used for a long time, resulting in a cone-shaped damage in its edge part. Therefore, the old toolholder should be replaced with a new one as soon as possible.

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Tungsten Carbide Ball End mill Introduction

Details: Category: Tungsten Information; Published on Friday, 24 October 2014 16:37; Hits: 293

Tungsten carbide ball end mill, commonly equipped in milling machines, has a ball-shaped blade and is widely applied in various hook face milling and arc groove machining. It can perform normal operation under high temperature condition. As a type of end mill and a kind of die mill, it is also known as R end mill. It can be classified into two types: cylinder-shaped ball end mill and cone-shaped ball end mill.

Characteristics of tungsten carbide ball end mill:

Milling materials applied: die steel, cast iron, carbon steel, alloy steel, tool steel and general iron materials.

High temperature resistance characteristic: It can maintain its cutting property under a temperature up to 450-550/500-600 degrees Celsius.

Tungsten carbide ball end mills account for a significant proportion of finish machining cutters and is widely applied in various industries like aerospace, automobile, shipbuilding and casting, plastic molding, medical equipment, and so on.