Best Gear Blank Manufacturers in India
There are several processes of making gears or making gear teeth on various components like casting, forging, extrusion, drawing, thread rolling and powder metallurgy, among others. Blanking of sheet metal can also is used for making thin gears, such as those used in mechanical watches, clocks, and similar mechanisms. Plastic gears can be made by such processes by injection molding and casting.
Gears can be small as those used in watches or as large as 9m in diameter, for rotating mobile crane super structures. The dimensional accuracy and surface finish required for gear teeth depend upon the intended use. Poor Gear tooth quality contributes to inefficient energy transmission, increased vibration and noise and adversely affects the gear’s frictional and wear characteristics. For example: submarine gears have to be of a superior quality so as to reduce the noise levels, thus helping to avoid detection.
There are a lot of gear manufacturers in India, But certainly very few are known for their quality, one such company is KKMetals which produces, gear blanks at finest quality and apart from that they also offer metal forging services, casting and engine transmission components supplier in India.
Earlier gears with the help of a drill and lathe machine, milling machine, broaching machines and at last filing to avoid any roughness hence consumed a lot of time and hence increasing the cost of gear because of low production but KK metals is the company which makes fastest gear blanks and hence has a good production rate.
Starting from cast gear blank, there are two basic methods of making gear teeth: Form cutting and generation.
In Form cutting gear tooth shape is reproduced by machining the gear blank around its periphery. The cutter travels axially along the length of a gear tooth and hence producing an appropriate depth to produce the gear tooth profile. After each tool is cut, the cutter is withdrawn, the gear blank is rotated and cutter proceeds to cut another tooth. This process continues until all the process have been machined.
Broaching can also be used to gear teeth and in particular suitable for producing internal gear teeth.
Gear teeth may be cut on a special machine with a single point cutting tool that is guided by a template in the shape of a gear tooth Profile.
The cutting tool used in gear generating may be a pinion shaped cutter, a rack-shaped cutter, or a hob.
1. In case of pinion shaped cutter it can be considered as one of the two gears in a conjugate pair, with the other being the gear blank.
2. On a rack shaper, the generating tool is a segment of a rack which reciprocates parallel to the axis of the gear blanks
3. A hob is basically a gear cutting worm, or a screw, made into a gear generating tool by a series of longitudinal slots or gashes machined into it to form the cutting teeth.