What Is A Angle Grinder?

An angle grinder, also known as a side or disc grinder, is a handheld power tool used for cutting, grinding and polishing.

Angle grinders can be powered by an electric motor, petrol engine or compressed air. The motor drives a geared head at a right-angle on which is mounted an abrasive disc or a thinner cut-off disc, either of which can be replaced when worn. Angle grinders typically have an adjustable guard and a side-handle for two-handed operation. Certain angle grinders, depending on their speed range, can be used as a sander, employing a sanding disc with a backing pad or disc. The backing system is typically made of hard plastic, phenolic resin, or medium-hard rubber depending on the amount of flexibility desired.

For more tips, go to http://upkeepingyourironwork.blogspot.com

What Is Oxy-Fuel Cutting?

In oxy-fuel cutting, a cutting torch is used to heat metal to kindling temperature. A stream of oxygen is then trained on the metal, and metal burns in that oxygen and then flows out of the cut (kerf) as an oxide slag.

For IRONWORK tips, go to http://upkeepingyourironwork.blogspot.com

What Is Oxy-Fuel Welding?

Oxy-fuel welding(commonly called oxyacetylene welding, oxy welding, or gas welding in the U.S.) and oxy-fuel cutting are processes that use fuel gases and oxygen to weld and cut metals, respectively. French engineers Edmond Fouché and Charles Picard became the first to develop oxygen-acetylene welding in 1903.[1] Pure oxygen, instead of air (20% oxygen/80% nitrogen), is used to increase the flame temperature to allow localized melting of the workpiece material (e.g. steel) in a room environment. A common propane/air flame burns at about 3,630 °F (2,000 °C), a propane/oxygen flame burns at about 4,530 °F (2,500 °C), and an acetylene/oxygen flame burns at about 6,330 °F (3,500 °C

For more information, go to http://upkeepingyourironwork.blogspot.com

What Is Expanded Metal?

Expanded metal is a form of metal stock made by shearing a metal plate in a press, so that the metal stretches, leaving diamond-shaped voids surrounded by interlinked bars of the metal. The most common method of manufacture is to simultaneously slit and stretch the material with one motion. It is often shortened to exmet, which also refers to a commercial firm by the same name that manufactures expanded metal. Also referred to as perforated metal, it is a large part of the metal industry and plays a key roll in fabrication.

Expanded metal is used in grates and in outdoor furniture (e.g. benches) or fencing. It is often used for guarding to prevent contact with hot surfaces or machinery.

Expanded metal is often used for architectural details and finds use in security applications such as in the walls of a Sensitive Compartmented Information Facility because, in heavier grades, it is difficult to breach without heavy cutting equipment or explosives.

For more information, visit us at http://upkeepingyourironwork.blogspot.com