The corner grinder , also known as the side grinder or disk grinder , is a handheld device used for grinding (abrasive polisher) and polishing. Although originally developed as a tool for rigid abrasive discs, the availability of replaceable resources has encouraged its use with a variety of cutter and attachments.
Angle grinders can be powered by electric motors, gasoline engines or compressed air. The motor moves the actuated head at the right angle where abrasive discs or thinner cut-off discs, one of which can be replaced when worn. Angular grinders usually have adjustable shields and side grips for two-handed operation. A particular angle grinder, depending on its speed range, can be used as sanders, using a sanding disc with a backing base or disc. Support systems are usually made of hard plastic, phenolic resin, or medium hard rubber depending on the amount of flexibility desired.
Angle grinders are standard equipment in metal fabrication stores and on construction sites. They are also common in machine shops, along with die grinders and bench grinders.
Video Angle grinder
Usage
Angle grinders can be used to remove excess material from pieces. There are many types of discs used for various materials and tasks, such as cut discs (diamond blades), abrasive grinding discs, grinding wheels, sanding discs, wire brushes, and polishing pads. The angle grinder has a large bearing to resist the side forces generated during cutting, unlike the electric drill, where the force is axial.
Angle grinders are widely used in metalworking and construction, as well as in emergency rescue. They are usually found in garages, service garages and auto body repair shops. There are various kinds of angle grinders to choose from when trying to find the right one for the job. The most important factor in choosing the right grinder is the size of the disc and how strong the motor is. Other factors include resources (pneumatics or electricity), rpm, and the size of the arbor. Generally disk size and power increase together. The size of a disc is usually measured in inches or millimeters. Common disk sizes for angle grinders in the US include 4, 4.5, 5, 6, 7, 9, and 12 inches. Discs for pneumatic grinders are also much smaller. Pneumatic grinders are generally used for light duty work where higher precision is required. This may be because pneumatic grinding can be small and light yet strong, as they do not contain heavy copper motor coils, while it is more difficult for electric grinders to maintain adequate power with smaller sizes. Electric grinders are more commonly used for larger heavy-duty jobs. However, there are also small electric grinders and large pneumatic grinders.
Maps Angle grinder
Security
Through the level of sound pressure and vibration studies conducted by the National Institute for Occupational Health and Safety, grinders under dismantled conditions ranged from 91 to 103 dBA. In addition, the angle grinder produces sparks when cutting iron metal. They also produce fractions that cut other materials. The blade itself can also break. This is a grave danger to the face and the particular eye, as well as other body parts, and thus, full face protectors and other protective clothing should be worn. Angle grinders should not be used without guards or grips attached; they are there as a necessary precaution for salvation. All work must be clamped securely or held firmly in a vise.
History
The corner grinder was discovered in 1954 by the German company Ackermann Schmitt (FLEX-Elektrowerkzeuge GmbH) in Steinheim an der Murr. Because of this, in Germany, the Netherlands, Slovakia, Czech, Polish, Croatian, Latvian, Romanian, Hungarian and Bulgarian (and possibly in other European languages), angle grinders are colloquially called simply "flexible".
See also
- Abrasive saw
References
Source of the article : Wikipedia
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