Overview of NC tools
1. Definition of NC tool:
Numerical control tools refer to the general term of all kinds of tools used in combination with numerical control machine tools (numerical control lathe, numerical control milling machine, numerical control drilling machine, numerical control boring and milling machine, machining center, automatic line and flexible manufacturing system)
2. Features of NC machine tools:
1) It has good stable cutting performance, good tool rigidity and high precision, and can carry out high-speed cutting and strong cutting.
2) The cutter has high service life. A large number of hard alloy materials or high-performance materials are used for the cutter (such as ceramic blade, cubic boron nitride blade, diamond composite blade and coated blade, etc.), while high-speed steel with high cobalt, high vanadium and aluminum and powder metallurgy high-speed steel are used for the high-speed steel cutter.
3) The tool (blade) has good interchangeability and can be changed quickly. The tool can be changed automatically and quickly, and the auxiliary time can be shortened.
4) The cutter has high precision and is suitable for processing high-precision workpieces, especially when the indexable blade is used
The repeated positioning accuracy of the tool body and the blade is high, so good machining quality can be obtained.
5) The cutter has reliable chip curling and chip breaking performance. The CNC machine tool can not be stopped at will to deal with chips. The long chips in the processing will affect the safety and processing efficiency of the operator.
6) The tool has the function of adjusting the size. The tool can be pre adjusted (set) outside the machine or compensated inside the machine to reduce the adjustment time of tool change.
7) The tools can realize serialization, standardization and modularization. The serialization, standardization and modularization of tools are conducive to programming, tool management and cost reduction.
8) Multifunction and specialization.
3. The main application fields of CNC tools include:
1) The processing characteristics of the automobile industry are mass production and assembly line production, and the processing conditions are relatively fixed. In order to optimize the production and improve the quality and efficiency, the automotive industry has put forward very strict requirements for the machining efficiency and service life of tools. At the same time, due to the use of assembly line operation, in order to avoid the shutdown of the whole production line and huge economic losses caused by tool change, the mandatory unified tool change is usually adopted. This also puts forward unique high requirements for the stability of tool quality.
2) Aerospace industry the processing characteristics of aerospace industry are high requirements for processing accuracy and difficult processing of materials. Most of the parts and components processed in this industry are superalloys and nitinol alloys (such as Inconel718) with very high toughness and strength.
3) Large turbine, steam turbine, generator and diesel engine manufacturing enterprises most of the parts to be processed by these enterprises are bulky and expensive. During processing, it is very important to ensure the accuracy of the processed parts and reduce waste products. Therefore, imported tools are often used in these industries.
4) In order to improve the processing efficiency and product quality, and give full play to the use efficiency of CNC machine tools, imported tools are often used to achieve the expected effect.
5) Among these enterprises, foreign-funded enterprises often pay more attention to the guarantee of production efficiency and quality. In addition, there are many other industries, such as the mold industry, military enterprises, etc. the application of CNC tools is also very common.
First line brand of CNC tools
Sandvik:
Sandvik Coromant is the largest metal cutting tool company under Sandvik Group, and also the world’s first metal cutting tool manufacturer and supplier.
Seco:
Sweden shangao tool company, one of the top ten brands of CNC tools, is a well-known carbide tool manufacturer in the world. It is famous for its milling and turning tools and inserts. It is a professional enterprise integrating R & D, production and sales of various types of carbide tools for metal processing.
Walter:
Walter Tool Co., Ltd., one of the top ten brands of CNC tools, the world’s famous machining tool brand, and one of the famous carbide tool production companies, started in Germany in 1919. It has formed an advanced enterprise of a full range of tool products and is one of the largest and influential metal cutting tool enterprises in the industry.
Kennametal:
Kenner Tool Co., Ltd. of the United States, one of the top ten brands of CNC tools, was founded in 1938 in the United States. It is a global leading tool solution supplier, a leading enterprise in the international mining and road construction tool industry, a leading enterprise in the market share of the metal cutting industry in North America, and a world-famous carbide tool manufacturing company.
Iscar:
Iska Tool Co., Ltd., one of the top ten brands of CNC tools, one of the largest metal cutting tool manufacturers in the world, a leading enterprise in the field of metal processing and machinery manufacturing in the world, and one of the largest and most technologically advanced foreign-invested tool manufacturers in China.
The ranking of cutting tools in various regions is also a reflection of price and quality. First, European and American cutting tools (the above types) second: Japanese cutting tools and Korean cutting tools, such as Mitsubishi comprehensive materials, Sumitomo Electric, Toshiba tycolo, Kyocera, Daijie, Hitachi, teguk, etc. Third: Taiwan tools, such as zhengheyuan and zhouche tools. Fourth: domestic tools, such as Zhuzhou Diamond, Dongguan nescast, Chengdu Sentai inger, Chengdu Qianmu, Shanggong and Hagong.
Classification and characteristics of NC tools
According to the tool structure, it can be divided into:
1) Integral type: the cutter is integrated and made of one blank without separation;
2) Welding type: connected by welding method, tool bar;
3) Machine clamp type: machine clamp type is divided into two types: non indexable and indexable; Generally, CNC tools are machine clamp type! (4) Special types: such as compound tools and shock-absorbing tools;
According to the materials used for the tool, it can be divided into:
1) High speed steel cutting tools;
2) Carbide cutter;
3) Ceramic cutting tools;
4) Ultra high pressure sintered body tool;
According to the tool processing mode, it can be divided into:
1) Turning tools: including outer circle, inner circle, thread, grooving, cutting tool, etc.
2) Drilling tools; Including drill bit, tap, reamer, etc.
3) Boring tools;
4) Milling tools; Including face milling cutter, end milling cutter, three face edge milling cutter, etc.
Post time: Aug-12-2022
