What is tungsten carbide inserts

Tungsten carbide inserts also called cemented carbide inserts, it is a relatively precious material. As tungsten carbide has excellent hardness and heat resistance properties, it is ideal for drilling, boring, shaping and forming metal workpieces. Also tungsten carbide inserts often used as tool tips. Most modern face mills, lathe tools and end mills use these cutting tools. Tungsten carbide inserts are typically treated as disposable materials, even though only the cutting edges of the inserts are worn when they're disposed.

Tungsten carbide inserts for such a wide range of machining processes is that the tungsten material used in creating tungsten carbide alloys is both scarce and expensive. With most tungsten reserves in the US and other Western countries exhausted, China supplies over 80% of the tungsten used worldwide. In 2005, the International Tungsten Industry Association estimated that at the current rate of global consumption, all tungsten reserves will be used up within 140 years.

Tungsten Carbide to be Contaminating the Environment

Small amounts of tungsten are released into the environment during the production of this metal. Tungsten has been found to than eventually contaminate water systems and agricultural land. For these reasons tungsten has been identified as a toxicant of great emerging concern.

Lead author of the research, Dr. Jessica Tyrrell, has expressed concerns that human exposure to tungsten is likely to increase. Tyrrell has suggested that it is important to determine more clearly how tungsten is ending up in our bodies. Dr. Nicholas Osborne, another one of the

research paper's authors, has commented about the possibility that the emergence of tungsten and other new materials as toxins is leading to the accumulation of a complex chemical cocktail

in our bodies.

It is my professional opinion that the concerns raised by the authors of this research paper should be taken seriously. I have witnessed increased concerns of people in dealing with our increasingly polluted environment in dealing with such issues as an increase in the incidence of deadly lung cancer. The emergence of new toxins, such as tungsten, associated with other serious health problems such as stroke, should raise a red flag insofar as compelling us to more carefully determine exactly what toxins people are being exposed to and in what manners

this exposure can be lowered.

High Tungsten Carbide Expsure for Stroke

High urinary tungsten concentration is associated with an increased risk for stroke, according to a review of this research published by Plus One. Due to an increase in tungsten demand over the years the potential for human exposure to the metal has increased. Although the toxicology of tungsten is not well understood at this time, evidence has suggested that there are cytoxic effects in the elemental metal and its alloys.

The situation is serious. Consider that aside from concerns about stroke, cobalt-tungsten carbide, which is used to make certain tools, dies, and wear-resistant products for oil and other industries, has shown some evidence of causing lung cancer among workers, as reported upon by EmaxHealth reporter Deborah Mitchell.

Researchers have investigated the association between tungsten and cardiovascular disease (CVD) or stroke. Elevated tungsten concentrations were found to be strongly associated with an increase in the prevalence of stroke. People with higher urinary tungsten concentrations were found to have double the risk of reported stroke. The researchers have conjectured that the pathological pathway which results from tungsten exposure may involve oxidative stress.

Buy Tungsten Carbide Drill Bits Cutters at Reasonable Price

What are Drill Bits?
Drill bits are cutting tools used to create cylindrical holes on metals, woods, glass etc almost always of circular cross-section. Drill bits come in many sizes and have many uses. Bits are held in a tool called a drill, which rotates them and provides torque and axial force to create the hole. Specialized bits are also available for non-cylindrical-shaped holes.
The shank is the part of the drill bit grasped by the chuck of a drill. The cutting edges of the drill bit are at one end, and the shank is at the other end. Drill bits Cutters online are available in standard sizes. Extensive drill bit and tap size chart lists metric and imperial sized drill bits alongside the required screw tap sizes.
How Do Drill Bits Work?
A drill bit is what actually cuts into the piece when drilling a metal or wood or a glass material. Situated at the tip of the drill string, below the drill collar and the drill pipe, the drill bit is spinning equipment that usually includes two or three cones made up of the hard components such as metal, tungsten carbide, and/or artificial or organic diamonds, and sharp teeth that that helps to drill the hole easily.
Drill bits are often used in borewell operations; in this case there are two kinds, percussion drilling and rotary drilling. Percussion drilling includes consistently dropping a heavy weight in the wellbore to chip away at the stone, rotary drilling uses a rotating drill bit to smash, cut, clean and smash the stone at the bottom of the well. The most popular choice for drilling for oil and gas, rotary drilling includes a drill bit, drill bit collar, drilling fluid, spinning equipment, hoisting equipment and prime moving service.
The prime mover is the power source for the drilling, while the hoisting devices manages raising the drill pipe to either place it into the well or raise it out of the well. Spinning devices is what sets the whole system in movement. In earlier days, drilling equipment was spun by livestock and wooden wheel, now it is done by a rotary table which is connected to square shaped hollow stem. Drill collar is connected to hollow stem which puts pressure and weight on the drill bit to make drilling easy.
Capping off the drill string is the drill bit, and covering the drilling procedure is drilling fluid, which allows providing buoyancy to the drill string, lubricating drilling process.

Allegheny Rises on Tungsten Carbide Biz Sale

Specialty metals maker Allegheny Technologies Inc. has completed its earlier announced sale of its tungsten materials business to Latrobe, PA-based wear-resistant products company Kennametal Inc. for $605 million. Shares of Allegheny moved up as much as around 2% during the trading session following the declaration of the news.
Allegheny decided to divest its tungsten materials business so that it can focus more on its core businesses - High Performance Metals and Flat-Rolled Products. The acquisition is also expected to increase Allegheny's financial flexibility and simplify its capital allocation and deployment.
Allegheny's tungsten materials business operates through roughly 1,175 employees across 14 operating facilities globally and consists of two market-leading divisions - ATI Firth Sterling and ATI Stellram. It produces tungsten powder, tungsten heavy alloys, tungsten carbide materials and carbide cutting tools. The business unit generated $338.6 million of total net revenues and $37.2 million of operating profit for the year ended Dec 31, 2012.
Kennametal paid for the acquisition partly by cash and partly by available borrowings under its existing revolving credit facility.
Allegheny's sole financial advisor and legal counselor for this transaction were The Goldman Sachs Group, Inc. and K&L Gates LLP, respectively. J.P. Morgan Securities LLC, which operates as a subsidiary of JPMorgan Chase & Co., acted as the financial advisor to Kennametal on the transaction.
Allegheny posted its third-quarter 2013 results on Oct 23. The company reported loss from continuing operations of $28.4 million (or 27 cents per share) compared with a profit of $31.3 million (or 29 cents per share) recorded a year ago. After excluding a loss of 4 cents per share due to the effects of income taxes reported in domestic and foreign jurisdictions, loss from continuing operations was 23 cents per share, narrower than the Zacks Consensus Estimate loss of 28 cents.
Allegheny recorded a loss of 5 cents per share in the reported quarter from discontinued operations that include the tungsten materials business and the iron castings and fabricated components businesses.
Revenues slipped 14% year over year to $972 million, missing the Zacks Consensus Estimate of $1,051 million. Revenues were hurt by lower demand across several end markets including oil and gas, jet engine aftermarket, electrical energy, and construction and mining. Allegheny also witnessed lower pricing for many of its products and a decline in raw materials surcharges.
Allegheny expects business conditions to remain challenging through the end of 2013 and potentially in 2014 due to the U.S. debt ceiling and other fiscal policy issues.
Allegheny is primarily focusing on cost optimization and is accelerating its cost reduction efforts. Allegheny, through this move, was successful in gross cost reductions of $123.4 million during the first nine months of 2013, a pace which is well ahead of its 2013 target of $100 million in new cost reductions. The company remains well positioned to align its production, and invenels to match the demands of its customers and end markets.

Ultra-Precision Aspheric Grinding System Simplifies Optical Productivit

The Nanotech 100UPG brings a new generation of accuracy, productivity, and simplicity in ultra-precision aspheric grinding. The system is available in either a XZ or XZB configuration. Although its primary application is the grinding of Tungsten Carbide and Silicon Carbide aspheric optical mold inserts used in glass press molding or the grinding of glass lenses directly, it also provides a 250mm diameter capacity for diamond turning applications.

Swanzey, NH — Moore Nanotechnology Systems, LLC, a global supplier of ultra-precision machining systems, introduces the all new Nanotech 100UPG Ultra-Precision Aspheric Grinder at SPIE Optifab in Rochester, NY the week of October 14th, 2013.

Nanotech has continued its history of setting new industry standards in the ultra-precision machining systems field with their latest innovation. The Nanotech 100UPG is the most technically advanced aspheric grinder available, with a great emphasis having been placed on making operation of this system easy and intuitive. Whether the application is Tungsten Carbide / Silicon Carbide precision optical mold inserts or aspheric glass lenses, this total flood coolant containment design has been engineered to add value to the process in terms of both efficiency and performance. Available in either XZ or XZB configurations, the machine offers a 100mm diameter swing capacity for optical grinding. It can also serve as an ultra-precision diamond turning system with a 250mm diameter capacity.

“One of the shortcomings with more traditional ultra-precision machining/grinding systems has been in offering customers the complete manufacturing solution. When we started this development project our goal was to not only design a superior grinding platform with state-of-the-art mechanics and control, but to also design and implement the tools and devices required for turnkey manufacturing. This included such features as in-situ automated wheel dressing and probing, in-situ metrology and correction, process monitoring with vision techniques, as well as touch probing for dimensional control. Our goal was to incorporate all this into a single system. I am pleased to say that our team here at MNTS has not only met this challenge, but they exceeded our expectations,” notes Tom Dupell, Vice President & Chief Operating Officer for Nanotech.

Allana Announces Tungsten Carbide Drill Results From Nova License

Allana Announces Drill Results From Nova License And Continues To Expand Potash Mineralization

Allana Potash Corp. announces drill results from 20 core holes completed on the Nova license acquired by the Company in 2012. The Company initiated its program late in 2012 and completed 20 core holes totaling 5119 metres. Analytical results have been compiled and potash mineralization extends both south and west from Allana's core license onto the Nova license. Drilling highlights include hole DM-13-29 which returned 2.50 metres of 28.3% KCl in the Sylvinite Zone, hole DM-13-30 which yielded 1.90 metres of 34.5% KCl in the Sylvinite Zone and hole DM-13-37 which returned 4.50 metres of 21.6% KCl in the Sylvinite Zone.

Farhad Abasov, President and CEO, commented "we are very pleased with the results from the exploration drilling on the Nova license. Drill results indicate the extension of Sylvinite and Kainitite mineralization south and west of the original Allana license with Sylvinite primarily located in the west, which management believes has the potential to be incorporated into our mining plan. Results indicate that kainitite is widespread, which we believe may add significantly to potential future mineral resource estimates."

Allana-Nova Drilling Results

Prior to Allana's acquisition of Nova, Nova completed 21 drill holes on its exploration license totaling 2122 metres. Nova drilling was concentrated on the western portion of its license and the program was designed to delineate extensions of the Musley Deposit as well as outline the limits of the evaporite basin. Generally, the Allana drillholes on the Nova ground intersected similar stratigraphy to that outlined by drilling on the Allana license. Drilling has now defined the western edge of the basin where Sylvinite distribution is variable however Kainitite is present throughout the basin. All holes were drilled vertically and true widths of the potash zones are estimated to be very similar to drilled widths due to the flat-lying nature of the potash horizons.

Drill results have been incorporated into the Allana database and Allana expects to incorporate Nova results into an updated mineral resource estimate in the coming months.

Tungsten Carbide Ball for Livescribe 3 and bluetooth smart pen

Recently smart pen announced by Livescribe has cloaked the microphone, speakers and the OLED screen unlike the previous versions and requires an Apple phone or tablet to function.

Liverscribe 3 works in a combination with special dot paper to capture everything written via an integrated infrared camera. Through a Bluetooth connection to an iOS device running the Livescribe+ mobile app, the Livescribe 3 allows everything written to be instantly transferred to a connected iOS device’s display. It has also replaced the Wi-Fi connectivity of the last version –Sky – Bluetooth Low Energy (BLE), also called Bluetooth Smart.

Bluetooth is used to wirelessly pair the Livescribe 3 with an iPhone or iPad, and the microphones on the Apple device are used to actually record audio. The Bluetooth pairing offers benefits such as faster wireless syncing between the pen and other devices, with reduced battery drain (up to 14 hours) compared to the Wi-Fi Sky pen. Anything you write will be showed up on your connected iPad after only a second or so.

One can recharge using the micro USB charging cable, with the standard black and chrome Livescribe 3 pen also coming bundled with a 50-sheet starter book of dot paper and a black tungsten carbide medium-tip ink cartridge. The black and dark chrome Pro Edition smartpen comes with a leather smartpen folio, 100-sheet hardbound dot paper journal. Livescribe is the company’s most mainstream product yet and is available for $149.95. It is a great pen that has a lot of digital features.