Mechanical processing is one of the most basic, extensive and important processes in the wood industry, which directly affects production efficiency, processing cost and energy consumption. With the advancement of technology in the wood industry, more and more wood composite materials, plywood, wood, bamboo glulam, especially melamine-impregnated paper plywood, PVC plywood, Al 2 O 3 reinforced plywood and other materials are used. Used for furniture, flooring, roof panels and works of wood. These materials are difficult to cut, easy to cut, and difficult or impossible to achieve with conventional tool construction and common tool materials.
In addition, with the development of wood industry technology, wood-based panel production equipment, manufacturing equipment, furniture manufacturing equipment and so on are developing towards a high degree of automation, full function, fast feed and high production efficiency. Both technological advances have promoted the development of cutting tool materials and manufacturing techniques. Whether the cutter can cut normally, the quality of cutting is good or not, and the degree of durability is closely related to the material of the cutter cutting parts. All kinds of physical phenomena in cutting process, especially tool wear and tool material properties, are of great significance.
Where the use of machine tools is allowed, the productivity of the tool depends mainly on the cutting properties that the material itself can perform. Woodworking tools are required to maintain cutting tool sharpness over long periods of time under high speed and high impact conditions. Therefore, woodworking tools must be made of materials that have the necessary hardness and wear resistance, sufficient strength and toughness and some degree of workmanship (e.g. welding, heat treatment, cutting and grinding).
Carbide tool material:
Woodworking tool materials mainly include hard alloy, tool steel (carbon tool steel, alloy tool steel, high speed steel). Hard alloy has excellent comprehensive performance, replacing a large part of tool steel, and is currently the first choice for high-end tools. Carbide knife has good wear resistance, in the machining of high hardness machining objects instead of high speed steel tool, can increase the cutting life more than 5 times.
Ordinary carbon steel is worse than high speed steel red heat resistance, the scope of application is narrower, but the price is relatively low. Due to the high melting point, high hardness, good chemical stability and heat resistance of tungsten carbide in hard alloy, its performance is much higher than that of high-speed steel, the price is relatively expensive, processing, welding more difficult. According to the Foresight Information report, carbide cutting tools dominate the world, accounting for more than 60%. At present, hard alloy is the most widely used in wood and metal processing have a large number of applications.
Currently commonly used tool materials are carbon tool steel, alloy tool steel, high speed steel, hard alloy, ceramics, diamond, cubic boron nitride and so on. Carbon tool steel and alloy tool steel are only used for some hand tools and tools with low cutting speed because of their poor heat resistance. Ceramics, diamonds and cubic boron nitride are only used for special occasions. The most commonly used materials are high speed steel and carbide. With the development of automation in wood-based panel industry and wood processing industry, hard alloy with high wear resistance has become the main materials for woodworking tools.
Carbide tool advantages:
(1) Compared with high speed steel, the hardness of commonly used hard alloy is 89~ 93 HRA, and can still maintain a high hardness at 800~1000℃.
(2) The cutting speed of cemented carbide tool can be increased by 4~10 times.
(3) The tool durability can be improved several times to dozens of times than that of high speed steel.
Select carbide woodworking tools note:
(1) Woodworking tools should choose YG class carbide with greater toughness.
(2) YG can be divided into coarse particles, fine particles and ordinary particles. When the composition is the same, the strength of coarse alloy is high but the hardness and wear resistance are slightly decreased. The fine alloy can increase the hardness and wear resistance, but the strength does not decrease obviously.
(3) hard alloy is more brittle, according to its brand and machining material, feed speed and other cutting conditions, reasonable selection of wedge Angle can be used for wood processing.
(4) After the correct choice of hard alloy brand, but also reasonable choice of hard alloy products model.
How to extend Tool life:
1: Select the appropriate cutting amount
(1) The cutting speed of different materials is very important to the service life of the tool and the quality of the material processing.
(2) The general material can choose high speed cutting, hard material and large diameter of the tool is best to choose low speed cutting and slow down the feed speed. The feed speed should not be fast or slow on average, and the feed should be gentle. If there is a stop in the cutting process, it will burn the tool and greatly reduce the service life of the tool.
(3) The cutting speed depends on the following three aspects: a. the material processed; b. Types and specifications of cutting tools; c. Equipment.
(4) If the use of large diameter tool, can be several times to complete the processing, so that can improve the service life of the tool and the operation of more safe, large diameter tool usually use high quality desktop equipment.
2. Maintenance of cutting tools
(1) Keep the tool clean. Remove resins, sawdust and other dirt from the wood after use. Use standard industrial solvents to clean the tool.
(2) Coated with a small amount of oil can prevent rust on the tool surface, clean up all stains on the tool handle, in order to prevent slipping in the process of use.
(3) Do not regrind the tool and change the shape of the tool, because every grinding process needs professional grinding equipment and professional grinding skills, otherwise it is easy to cause cutting edge fracture, accidents.
Carbide tool materials have become the main cutting tool materials in the wood processing industry, and in the future quite a long time, will still play an important role in wood cutting processing. With the improvement of various hard alloy performance technology and the continuous improvement of coating technology, the cutting performance of hard alloy tool materials will continue to improve, wood processing industry to wood and wood composite material cutting characteristics, the application of a variety of modification and coating technology to obtain new materials, reasonable selection of hard alloy materials and hard alloy tools, To improve the cutting performance, product quality and production efficiency of carbide tool to the maximum extent.
Carbide woodworking inserts knives product characteristics:
- High hardness and wear resistance
- High elastic modulus
- High compressive strength
- Good chemical stability (acid, alkali, high temperature oxidation resistance)
- Low impact toughness
- Low expansion coefficient, thermal and electrical conductivity similar to iron and its alloys
Performance application of hard alloy woodworking blade:
There are many domestic woodworking manufacturing factories, furniture and other woodworking production efficiency is very high. Because of the needs of woodworking machinery and furniture manufacturing, the market demand for cemented carbide woodworking tools and cemented carbide woodworking blades is very strong. Under the condition of continuous improvement of productivity level, the speed of upgrading of products such as woodworking machine tools is also increasing, which drives the consumption of products such as hard alloy woodworking blades.
Post time: Apr-21-2023