Projection welding belongs to the group of resistance welding techniques. With this process, the shape of the workpiece is used to make discrete contacts at particular points to concentrate current on during the welding process. In most applications, multiple small protrusions are formed on one surface of the part to be welded. These protrusions can be round dimples, elongated ridges, round or extended angles of weld nuts. Two circular lines placed together at an angle of 90 degrees form a point contact.
Aug 6, 2020
The main purpose of surface grinding machines is the finishing of a manufactured part. This is a very precise tool that uses a fixed, abrasive rotating wheel to shave or trim a metal surface held in place with a vise. The table of the grinder is magnetic, which helps to keep the material stationary. Such magnets can be switched by the lever on the front side of the grinder. The grinder can be moved automatically, back and forth, or manually as needed.
Aug 6, 2020
Unlike lathes, which have thousands of years of history, milling machines are less than 200 years old. Because they require more power than manual lathes, their introduction has to wait for the invention of industrial water and steam power. Similarly, all of its mechanical components must be provided first, such as precisely mounted slide rails, large castings that resist cutting forces, calibrated screws and hardened steel cutting tools.
Aug 5, 2020
A rack and pinion gear system converts rotational into linear motion. A perfect example is the steering system for many cars. The steering wheel rotates the gear meshed with the rack. When the gear rotates, it will slide the rack left and right according to the way the wheel rotates. Some gears also use rack and pinion gears to turn a dial that displays a certain weight. But of course, rack and pinion gears are used in a wide range of machine tools such as for linear guideway systems and others. In this introductory blog entry, we will provide an overview of rack and pinion gears. Let’s go!
Aug 5, 2020
Not to be confused with a milling machine, a grinder is a heavy-duty machine used to remove material from the surface of a workpiece. While milling machines have a rotating cutting tool that is placed on a stationary workpiece, the grinder has a rotating grinding wheel that is also placed on a stationary workpiece. There are several different types of grinders, each of which works differently.
Aug 4, 2020
A horizontal boring machine is a specialized machine tool that bores holes in a horizontal direction in relation to the floor. There are three main types including floor, table, and planer. Boring machines can process extremely large and heavy parts and allows operators to reach hard to machine geometries and small cavities.
Aug 4, 2020