lap


lap
a defect appearing as a seam on a rolled bar. Laps are rolled over pieces of material that arise when a bar is given a pass through the rolls after a sharp overfill or fin has been formed, causing the protrusion to be rolled into the surface of the product. The presence of oxides usually prevents the lap welding to the original bar surface, so that in subsequent cold working it is carried through as a longitudinal crack.

Mechanics glossary. 2013.

Synonyms:

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  • Lap — (l[a^]p), n. [OE. lappe, AS. l[ae]ppa; akin to D. lap patch, piece, G. lappen, OHG. lappa, Dan. lap, Sw. lapp.] 1. The loose part of a coat; the lower part of a garment that plays loosely; a skirt; an apron. Chaucer. [1913 Webster] 2. An edge; a… …   The Collaborative International Dictionary of English

  • lap — Ⅰ. lap [1] ► NOUN ▪ the flat area between the waist and knees of a seated person. ● fall (or drop) into someone s lap Cf. ↑fall into someone s lap ● in someone s lap Cf. ↑in someone s lap …   English terms dictionary

  • lap — lap1 [lap] n. [ME lappe < OE læppa, fold or hanging part of a garment, skin; akin to Ger lappen < IE base * leb , lāb , to hang down > L labare, to totter, labi, to fall, sink, lapsus, a fall] 1. Now Rare the loose lower part of a… …   English World dictionary

  • LAP — 1922 1987 Jean Laplaine, dit Lap, fut l’un des personnages les plus représentatifs de la continuité caricaturale propre au Canard enchaîné . Il naquit à Joigny en 1922. Après avoir participé activement à la Résistance, il collabora au quotidien… …   Encyclopédie Universelle

  • Lap — Lap, v. t. [OE. lappen to fold (see {Lap}, n.); cf. also OE. wlappen, perh. another form of wrappen, E, wrap.] 1. To fold; to bend and lay over or on something; as, to lap a piece of cloth. [1913 Webster] 2. To wrap or wind around something.… …   The Collaborative International Dictionary of English

  • Lap — Lap, v. t. [imp. & p. p. {Lapped}; p. pr. & vb. n. {Lapping}.] 1. To rest or recline in a lap, or as in a lap. [1913 Webster] To lap his head on lady s breast. Praed. [1913 Webster] 2. To cut or polish with a lap, as glass, gems, cutlery, etc.… …   The Collaborative International Dictionary of English

  • Lap — Lap, v. i. To be turned or folded; to lie partly upon or by the side of something, or of one another; as, the cloth laps back; the boats lap; the edges lap. [1913 Webster] The upper wings are opacous; at their hinder ends, where they lap over,… …   The Collaborative International Dictionary of English

  • LAP — steht für: Lehrabschlussprüfung Lebensabschnittspartner, siehe Lebensgefährte Landesanstalt für Pflanzenbau Forchheim L.A.P., ein Spiel LAP Lambert Academic Publishing, ein Verlag der VDM Publishing Gruppe. Landschaftspflegerischer… …   Deutsch Wikipedia

  • Lap — Lap, n. 1. The act of lapping with, or as with, the tongue; as, to take anything into the mouth with a lap. [1913 Webster] 2. The sound of lapping. [1913 Webster] …   The Collaborative International Dictionary of English

  • Lap — Lap, v. i. [OE. lappen, lapen, AS. lapian; akin to LG. lappen, OHG. laffan, Icel. lepja, Dan. lade, Sw. l[ a]ppja, L. lambere; cf. Gr. ?, W. llepio. Cf. {Lambent}.] 1. To take up drink or food with the tongue; to drink or feed by licking up… …   The Collaborative International Dictionary of English

  • lap up — lap up, v. t. [See {lap}, v. i.] 1. To take up (drink or food) with the tongue; to drink by licking up. [1913 Webster] 2. (fig.) To accept or enjoy enthusiatically and uncritically. [PJC] …   The Collaborative International Dictionary of English


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