CNC cutting tools really important part or procedure of tool making. The CNC machines are computer-controlled and also equipped with high-precision tools to make correct movements in a repeated pattern. Through this machine known as the CNC machine, all the technicians can easily make an object or product according to their desire shape. Today, we will discuss some CNC cutting tools and their process of tool making.
Fundamentals Of CNC Cutting Tools
There are some principles of chip formation, rotation direction, and chip load that will travel with this process of tool making.
The Chip Formation
Cutting tools are very useful to remove metal from any block of material through a process known as shearing. This will easily eject metal upwards through a flute of the tool while moving through a material.
The Rotation Direction
All types of tools – except those known as the left hand, such as a left-handed tap – can be able to rotate in a direction that is clockwise while looking down at the part from the spindle of the machine. You can find an adjustable table for the same.
The Chip Load
The thickness of the material that is being ejected from a tool is known as the chip load. Many CAM applications reveal that the calculated chip load can be decided on the basis of the speed of the spindle, and also the rate of the linear feed. They are also able to program speeds and feeds depending on the intended chip load as the actual input.
Examples Of The CNC Cutting Tools Good For Tool Making
Since ancient times, different types of cutting tools have been used for the purpose of tool making. They’re one of the most useful and oldest inventions in human history.
Although all cutting tools have a similar job to do, and their basic role is to cut through a material with precision. But, you need to choose the best cutting tools for your products and you must check the following features before you buy.
Normally, for an effective cutting tool, it needs to:
- Posses high thermal conductivity
- Be 30% to 50% harder than the material it will cut.
- Have a low coefficient of friction
- Be fabricated easily.
- Be chemically stable.
- Be resistant to wear.
The HSS Or High-Speed Steel
It‘s consists of high carbon steel with a good amount of alloys like tungsten, chromium, and molybdenum. With this strong combination, it becomes much harder, tougher, and wear-resistant. It also offers a much higher rate of removal for metals and other materials. To improve its power, you may need to apply some specific surface treatment.
The Carbon Steel Tool
These special kinds of cutting tools are not very costly and are mainly used for those operations which are of low speed. They have a composition of carbon of 0.6 – 1.5% with a small amount of silicon and manganese. They’re mainly used in forming tools, twist drills, milling cutters, and also for turning.
Cemented Carbide
Good for the high-speed operations, these special carbide tools are very hard and can withstand high temperature. Normally, titanium, tantalum, and tungsten are its main ingredients. Operations that are done for a high-quality finish in the surface part use them.
The Ceramics
These special tools are chemically inert, corrosion-resistant, and also much faster than those high-speed steel. Usually, ceramics are made of aluminum oxide and silicon nitride. People can use such tools to cut ceramic tiles and slabs.
Some Examples Of CNC Milling Tools For Tool Making Process Are:
- Various types of Endmills
- Fly cutter
- Twist drills and many more.
So, these are some of the very important CNC cutting tools to help you out in the complex process of tool making.
