What is gear cutting?
Gear cutting is any machining process for creating a gear. The most common gear cutting processes include hobbing, broaching, milling and grinding. Such cutting operations may occur either after or instead of forming processes such as forging, extruding, investment casting or sand casting.
Gear cutting services include design, manufacture, assembly of gearboxes and maintenance.
Types of gear cutting
There are many different types of gear cutting including spurs, bevel, helical, moulded, racks, worm and worm wheels, internal gears and many others.
How do we use gears?
Gears are used in many machines. Many are machines we use in our everyday life, such as cars, clocks, bikes, vacuums etc. Gears make our lives easier in many ways. Gears can increase or decrease the speed of rotation and can easily be used to reverse the direction of rotation. Another reason gears are essential is that they transmit rotational motion to a different axis.
Process of gear cutting
There are many different processes involved in gear cutting along with types of machines to be used to define different types of gears. The various production methods for producing gears by machining are as follows.
Hobbing is a machining process for gear cutting, cutting splines and cutting sprockets on a hobbing machine, which is a special type of milling machine. The teeth or splines are progressively cut into the work piece by a series of cuts made by a cutting tool called a hob.
Broaching is a machining method in which a series of cutting teeth each remove a portion of stock as the cutting tool moves past or through the work piece. Combining both roughing and finishing in one operation. Broaching removes stock to precise tolerance faster than any other known metal cutting process.
Milling is the most common form of machining, a material removal process, which can create a variety of features on a part by cutting away the unwanted material.
Grinding is a material removal and surface generation process used to shape and finish components such as gears. Grinding is used instead of or as well as milling, to achieve better precision and surface finish.
Gears are commonly made out of metal, plastic and wood however mainly metal and are custom made for many different businesses.
Gear cutting services are available for many different industries such as automotive, food, packing, plastics, dairy, mining, quarrying and many different others.