Until the 1990s, the domestic power tool industry has formed a number of large-scale enterprises, the technical process has gained great progress, product quality and performance continue to improve, the production capacity is huge, but also drive the parts manufacturers. Accompanied by the continuous improvement of the competitiveness of China’s manufacturing industry in the world, China has become the most important exporter in the international power tools market.
Power tools industry, belonging to the advanced equipment manufacturing industry, enhanced services in advanced manufacturing. Power tools are widely used in aerospace, high-speed rail construction, shipbuilding, automobile, and other advanced equipment manufacturing and construction of roads, decoration, wood processing, metal processing and other production areas. Common power tools are: metal cutting power tools, grinding power tools, assembly power tools and power tools for railway. Commonly used power tools are electric drills, electric sanders, electric wrenches and electric screwdrivers, electric hammers and impact drills, concrete vibrators, electric planers and so on. Powder metallurgy partsare widely used in power tools.
The following is a list of common powder metallurgy power tools parts
In hand drill: bearings, bushings, couplings, spur gears, helical cylindrical gears, helical cylindrical gears – (A), nuts
In vibratory drills: exchangers, ratchets, stops, bushings
In electric planes: bushings, pulley A, pulley B, pulley C
Electric circular saws: washers
In pruning shears: drive gears
In electric coordinate saws: gears, balancing hammers, gear holders
Reciprocating saws: MIM saw blades, MIM saw clamps, MIM saw blade holders
Portable variable speed wire saws: crank, counterweight, eccentric gear assembly
Impact hammers: cylinders, piston tops
Bench drills: gears, helical cylindrical gears
Power Tool Parts Powder metallurgy sintering methods are also categorized into various types
1、Liquid phase sintering
If there are more than two kinds of components in the powder billet, the sintering may be carried out above the melting point of a certain component, so that a small amount of liquid phase appears in the powder billet during sintering.
2、Pressurized sintering
In the sintering, the powder body pressure to promote its densification process. Pressurized sintering is sometimes synonymous with hot pressing (hot pressing), hot pressing is a combination of powder forming and sintering, directly to the product process.
3, activation sintering
In the sintering process using some physical or chemical measures, so that the sintering temperature is greatly reduced, the sintering time is significantly shortened, while the sintered body properties are improved and enhanced.
4、Electrospark sintering
Powder body in the molding press into the direct current and pulse electricity, so that the powder particles produced between the arc and sintering; in the sintering gradually exert pressure on the workpiece, the molding and sintering of the two processes are combined together.
The content introduced above is the common four powder metallurgy sintering methods, through these sintering methods, you can effectively complete the powder metallurgy sintering process. Because, in the powder metallurgy sintering process powder particles to occur mutual flow, diffusion, melting, recrystallization and other physicochemical processes, so that the powder body is further densified, eliminating some or all of the pores.
Harber Industrial was established in 2014 and has since become a reliable supplier of powdered injection molding products, specializing in custom-engineered metal injection molding (MIM) components for various industries worldwide. MIM is an innovative powder metallurgy technology that allows for the mass production of both simple and complex-shaped mim mental parts with consistent quality. Harber has been a pioneer in manufacturing steel parts using metal injection molding and remains at the forefront of MIM technologies. Our team consists of skilled professionals including metallurgists, designers, engineers, technicians, toolmakers, and assembly members who are dedicated to delivering advanced engineering and production capabilities. We have served customers from Europe, Canada, the United States, Russia, Japan, and our native partners in China. With our expertise in MIM, Harber is privileged to be your partner in the research and production of your sintered parts
