| Term 
 
        | aluminum electrode wire  [image] |  | Definition 
 
        | classified by series according to the metals the aluminum is alloyed with, and whether the aluminum is heat treated. Does not indicate the strength of the electrode |  | 
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        | welding in which nonferrous metal with a lower melting point than the base metal is melted and spread between two base metals to form a strong bond |  | 
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        | An indication of a good weld penetration found on the back of a weld. Also mark on paint from improper machine welding. |  | 
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        | A hole through the back side of the weld, which indicates too much penetration into the lower base metal.  Also an unwanted mall in paint from improper use of the buffer. |  | 
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        | Term 
 
        | carburizing flame    [image] |  | Definition 
 
        | A flame obtained by mixing slightly more acetylene than oxygen, used for welding nickel, aluminum, and other alloys; also called surplus or reduction flame. |  | 
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        | Term 
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        | welding with an uninterrupted seam in a slow, steady, ongoing movement. |  | 
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        | Term 
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        | When the electrode is positive and the work piece is negative; the greatest welding penetration is produced at this connection. |  | 
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        | Term 
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        | A way to examine whether a weld is satisfactory by working on a test piece of the same metal and thickness as the panel, then separating it to see how cleanly the weld comes apart. |  | 
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        | Term 
 | Definition 
 
        | Protection used when welding near on-board computers and sensor wirong |  | 
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        | Term 
 | Definition 
 
        | Welding with pieces of metal parallel with the bench or shop floor; fast and easy welding with the best penetration. |  | 
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        | Term 
 | Definition 
 
        | Pieces of metal are heated to the melting point, joined together with a filler rod, and allowed to cool. |  | 
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        | Term 
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        | Thermal paint used to determine the temperature of aluminum or other metal being heated. |  | 
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        | Term 
 | Definition 
 
        | Area around the weld that becomes hot; should be kept to a minimum to prevent panels from warping or parts from being damaged. |  | 
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        | Term 
 | Definition 
 
        | A clay-like material that reduces the heat effect zone and prevents warping. |  | 
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        | Term 
 
        | horizontal welding   [image] |  | Definition 
 
        | Welding with pieces of metal turned sideways. |  | 
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        | Term 
 | Definition 
 
        | A piece of metal made of the same metal as the base metal that can be placed behind the weld; also called a backup strip. |  | 
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        | Term 
 | Definition 
 
        | Holding pieces in alighnment before welding. |  | 
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        | Term 
 | Definition 
 
        | A weld made along the top edge of an overlapping piece. |  | 
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        | Term 
 
        | metal inert gas (MIG) welding   [image] |  | Definition 
 
        | Gas-shielded metal arc welding. |  | 
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        | Term 
 | Definition 
 
        | A standard flame achieved by mixing acetylene and oxygen in a 1 to 1 ratio by volume. |  | 
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        | Term 
 | Definition 
 
        | Procedure to confirm a spot weld after it has been made using a chisel and a hammer to confirm quality. |  | 
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        | Term 
 | Definition 
 
        | Welding with the pieces upside down or over your head, the most difficult position. |  | 
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        | Term 
 | Definition 
 
        | A flame obtained by mixing slightly more oxygen than acetylene, used for welding brass and bronze. |  | 
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        | Term 
 
        | plasma arc cutting [image] |  | Definition 
 
        | A cutting process in which metal is severed by melting a localization area with a constructed arc and removing molten material with a high velocity jet of hot, ionized gas issuing from an orifice. |  | 
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        | Term 
 | Definition 
 
        | Adding metal into a hole and fusing all metal. |  | 
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        | Term 
 | Definition 
 
        | Heating metal with electrodes and joining them by applying pressure. |  | 
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        | Term 
 | Definition 
 
        | Weld in which arc is directed to penetrate both pieces of metal, while triggering a timed impulse of wire feed. |  | 
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        | Term 
 | Definition 
 
        | Intermittent welds used to join two or more parts. |  | 
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        | Term 
 | Definition 
 
        | A temporary spot weld used before making a permanent weld instead of a clamp or metal screw. |  | 
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        | Term 
 | Definition 
 
        | Gas-shielded tungsten electrode arc welding. |  | 
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        | Term 
 | Definition 
 
        | Welding the surface a level lower than the base metal, thereby creating groove. |  | 
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        | Term 
 | Definition 
 
        | Welding with the pieces of metal turned upright or in up and down position. |  | 
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        | The exposed part of the weld on the welded side. |  | 
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 | Definition 
 
        | Joining two metal or plastic pieces together by bringing them to their melting points, often involving the use of a welding rod to add metal or plastic to a joint. |  | 
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        | thick covers made of fire-resistant cloth for protecting vehicle surfaces from heat, sparks, and weld splatter. |  | 
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        | Term 
 | Definition 
 
        | An electrical current increases, the penetration depth, melting speed, arc stability, amount of weld splatter, excess metal height, and bead width also increase. |  | 
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        | Term 
 | Definition 
 
        | A shaded glass welding helmet insert used to protect eyesight; also called a filter plate. |  | 
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        | Term 
 | Definition 
 
        | Width and height of a weld bead. |  | 
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        | Term 
 | Definition 
 
        | Indicated by the height of the exposed surface of a weld on the back side. |  | 
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        | The part of the joint where the electrode is directed. |  | 
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        | Term 
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        | The depth of the triangular cross section of a weld. |  | 
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        | Term 
 | Definition 
 
        | The depth of the triangular cross section of a weld. |  | 
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