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2. Magnetic switchable device - Wikipedia

   en.wikipedia.org/wiki/Magnetic_switchable_device

   A magnetic switchable device (often called a magnetic base) is a magnetic fixture that uses one or more permanent magnets in a configuration that allows the external field to be turned on or off. They are used in many applications including optics , metalworking , lifting , and robotics, to attach items to metal surfaces in a secure but ...

3. Clamp holder - Wikipedia

   en.wikipedia.org/wiki/Clamp_holder

   Clamp holders can secure laboratory equipment at specific angles, diameters, and weights, as required. [3] Clamp holders are often used to hold the attached apparatus over a work surface. There are several different types of holders, such as swivel holders and all-position holders, that allow adjustments for different angles and planes. In some ...

4. Shielded metal arc welding - Wikipedia

   en.wikipedia.org/wiki/Shielded_metal_arc_welding

   As welding progresses and the electrode melts, the welder must periodically stop welding to remove the remaining electrode stub and insert a new electrode into the electrode holder. This activity, combined with chipping away the slag, reduces the amount of time that the welder can spend laying the weld, making SMAW one of the least efficient ...

5. Clamp (tool) - Wikipedia

   en.wikipedia.org/wiki/Clamp_(tool)

   Gripe (a specialized clamp, tightened with a wedge, for holding strakes in position when building a clinker boat) Hand clamp [1] Handscrew (upper right in the top photo) Holdfast, a bench clamp for holding things to a bench top or side The bench forms the fixed jaw. Magnetic clamp (see Magnetic base) Mitre clamp; Pipe clamp (top of the top photo)

6. Arc blow - Wikipedia

   en.wikipedia.org/wiki/Arc_blow

   Magnetic arc blow is known to begin at field densities as low as 10 gauss and becomes severe at densities of, equal to or greater than, 40 gauss; it is directional and can be classified as forward or backward moving along the joint, but can occasionally occur to the sides depending on the orientation of the poles to the workpiece.

7. Arc welding - Wikipedia

   en.wikipedia.org/wiki/Arc_welding

   Arc welding power supplies can deliver either direct (DC) or alternating (AC) current to the work, while consumable or non-consumable electrodes are used. The welding area is usually protected by some type of shielding gas (e.g. an inert gas), vapor, or slag. Arc welding processes may be manual, semi-automatic, or fully automated.