A peculiar characteristic of machine tools is that they can’t be put to use until the user performs a critical final assembly step—installing the cutting tool in the machine.

In fact, a machine tool user is typically required to make vital engineering decisions that affect how the machine performs. The user chooses what tooling the machine will use and the parameters at which those tools will run. Poor choices are difficult to detect, because the machine may still make the part—just less efficiently than it otherwise could.

Seeing the machine and tooling truly working in harmony has helped many shops realize the importance of viewing these elements as one system. Specifically, shops milling at higher spindle speeds often discover the phenomenon of the “sweet spot”—the particular, narrow range of spindle speed at which chatter quiets down to let the machine cut more productively. DCGT Insert Because these sweet-spot speeds are different for each combination of tool and machine, neither the cutting tool supplier nor the machine tool supplier is typically able to suggest to shops what their optimal parameters should be.

Now, cutting tool supplier Kennametal has introduced a service that aims to provide this information. The service relies on technology from BlueSwarf, a company in Clearfield, Pennsylvania, that specializes in analyzing machine tool vibration. Called “Kennametal 360,” this new service allows clients to obtain machining parameters based on the “frequency response” signatures of specific machines. With BlueSwarf technology, Kennametal combines models of the machine, toolholder and cutting tool to predict the very best spindle speed for that particular combination, as well as the depths of cut that Shoulder Milling Inserts the combination can achieve in the material the shop is machining. Users of the service even get an ID number that lets them input the data online to obtain these parameters themselves.

Obtaining these sweet-spot parameters represents just part of the service, however, and arguably it represents just a small part. In total, the “360” service represents the cutting tool supplier taking accountability for those engineering decisions that lead to tooling-related choices, as well as the physical assembly of the tooling. According to Tim Fara, Kennametal’s global market segment manager for the machine tool industry, a user of this service can avoid having to devote a staff member to serve as a tool-crib attendant.

Subscribers to the service receive cutting tools and toolholders as complete, custom assemblies. These assemblies are balanced to G 2.0 where applicable, and all presetting measurements are included in the package. Optimal machining parameters for the user’s specific machines are provided via BlueSwarf, and the package even includes certified retention knobs. The user simply opens the package and puts the tooling to work.

Initially, a new user of this service gets a visit from a Kennametal representative. Studying the shop’s machines and parts allows that representative to recommend tooling. Generally, this visit is also when the frequency response characteristics of the user’s machines are captured. A “tap test” (in which a sensitive hammer rings the machine like a bell) obtains this information. However, when a shop changes its machine tools, it doesn’t have to wait for a return visit. A PC-interfaced microphone recording the sound of the cut can capture enough data to let Kennametal perform the frequency-response analysis of a new machine remotely. Or, the company might already have access to the information, because BlueSwarf has received permission from various machine tool builders to tap-test their machines. The company has the signatures of more than 100 machining center models already in its database.

An additional partner to this service is the American Machine Tool Distributors Association. An AMTDA member can sell the program card that provides access to the Kennametal 360 service as part of a single purchase price for a new machine tool. This arrangement allows the machine, the tooling and the engineering decisions that marry them together to be provided as a single system after all.

The Carbide Inserts Website: https://www.estoolcarbide.com/pro_cat/turning-inserts/index.html

Recommendation for use:

1. Please choose the appropriate rotating speed according to the recommendation before grinding.
2. Choosing suitable carbide burrs on shape, diameter, and teeth type for different machining.
3. Please confirm that the burr shank and chuck of the die grinder be connected firmly before using.
4. Do not put too much pressure on burrs while grinding will cause higher temperature and shorten working life of burrs.
5. Do not keep rotating when burrs are stuck in grooves or gaps of material.
6. Do not use burrs in a fully combustible gas environment.
7. Please wear glasses and gloves Coated Inserts as protection before grinding.

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Turning machining of cast iron materials offers excellent machining properties compared to carbon steel with the same RPMT Insert microstructure. Cast iron exhibits low cutting forces, low power consumption, low tool wear rate, and enables high metal removal rates.

When it comes to turning machining of cast iron, the higher the hardness and strength of the cast iron, the lower the metal cutting performance and the shorter the expected tool life. Metal cutting performance is influenced by the structure of the material, and cast iron is defined by its carbon content, which is generally higher than that of steel. Most types of cast iron used for metal cutting production have good machining performance.

There are certain requirements for tool properties when machining cast iron:

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The Carbide Inserts Website: https://www.cuttinginsert.com/product/pvd-coated-insert/

As a strategic metal, Carbide Inserts tungsten is widely used in metallurgical machinery, petroleum chemistry, aerial and space industries and national defence engineering. So, today we are going to talk about tungsten supply and demand.

China has rich tungsten resources. During the past 10 years, China supplys more tungsten than the demand. By the end of 1998, China’s tungsten production capacity exceeded 35,000 tons. In recent years, the global demand for tungsten has been about 31,000 tons, whild China’s tungsten production in 1998 amounted to about 22,000 tons, making up 71% of the global tungsten demand.

At present, China’s domestic tungsten demand is about 8,000 tons and most of its tungsten is exported. While, excess tungsten exports have caused a decline in the global tungsten price, which is unfavorable to the development of China’s tungsten industry.
Varied international and domestic tungsten markets make it difficult to accurately predict the future demand for tungsten.
It is necessary to maintain and give full play to tungsten superiority tungsten carbide inserts to guarantee a sustainable development of China’s tungsten industry.
Above is about tungsten supply and demand.

Tungsten Manufacturer & Supplier: – https://www.estoolcarbide.com

Email: https://www.estoolcarbide.com
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The Carbide Inserts Website: https://www.cuttinginsert.com/pro_cat/drilling-inserts/index.html

Grinding creates the greatest hazard as the exposed tungsten/thoria area is greatly increased and fine particles of potentially radioactive dust are released into the atmosphere.

It is recommended that a dedicated grindstone with local dust extraction is used, and a simple filter mask is worn unless the number of electrodes used is very small (less than about 20 per year). If the grinding wheel is not fitted with a protective viewing screen, eye protection should be worn. The air extract from the grindstone should be arranged so that the particles are deposited into a substantial disposable bag.

A safe method of collecting and handling Carbide Grooving Inserts the dust from the collection unit must be used to minimise release to the atmosphere (for example, it could be placed in a sealed paper/plastic bag.)

The area round the grinding wheels should be cleaned daily with a vacuum cleaner to remove dust particles. If a high efficiency vacuum cleaner is not available, then the material should be damped down to minimise dust.

Workers should be encouraged to wash their hands before using the toilet facilities, and before taking work breaks, and for this reason the washing facilities should be close to the work areas.

 
Tungsten Manufacturer & Supplier: Chinatungsten Online – https://www.estoolcarbide.com
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