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  2. Molding (process) - Wikipedia

    en.wikipedia.org/wiki/Molding_(process)

    A mold is a counterpart to a cast. The very common bi-valve molding process uses two molds, one for each half of the object. Articulated molds have multiple pieces that come together to form the complete mold, and then disassemble to release the finished casting; they are expensive, but necessary when the casting shape has complex overhangs. [3 ...

  3. Pattern (casting) - Wikipedia

    en.wikipedia.org/wiki/Pattern_(casting)

    Sweep patterns are used for symmetric molds, which are contoured shapes rotated around a center axis or pole through the molding material. A sweep pattern is a form of skeleton pattern: any geometrical pattern that creates a mold by being moved through the molding material.

  4. Stonemasonry - Wikipedia

    en.wikipedia.org/wiki/Stonemasonry

    A 15-storey apartment building in La Tourette (Marseille), designed by Fernand Pouillon.Constructed using the massive precut stone method. Gobekli Tepe, early monumental Neolithic stonemasonry using flint-carved limestone columns (~9500 BCE) 12th-century stonemasonry at Angkor Wat Diamond-wire saw in use for quarrying marble Stonemason working with medieval tools Stonemasonry with andesite ...

  5. Rock paper scissors - Wikipedia

    en.wikipedia.org/wiki/Rock_paper_scissors

    In North America and the United Kingdom, it is known as "rock, paper, scissors" or "scissors, paper, stone". [ 10 ] [ 11 ] If this name is chanted while actually playing the game, it might be followed by an exclamation of "shoot" at the moment when the players are to reveal their choice (i.e. "Rock, paper, scissors, shoot!").

  6. Rotational molding - Wikipedia

    en.wikipedia.org/wiki/Rotational_molding

    Molds (or tooling) are either fabricated from welded sheet steel or cast. The fabrication method is often driven by part size and complexity; most intricate parts are likely made with cast tooling. Molds are typically manufactured from stainless steel or aluminum. Aluminum molds are usually much thicker than equivalent steel molds, as it is a ...

  7. Quern-stone - Wikipedia

    en.wikipedia.org/wiki/Quern-stone

    Quern-stones are stone tools for hand-grinding a wide variety of materials, especially for various types of grains. They are used in pairs. The lower stationary stone of early examples is called a saddle quern, while the upper mobile stone is called a muller, rubber, or handstone. The upper stone was moved in a back-and-forth motion across the ...

  8. Sand casting - Wikipedia

    en.wikipedia.org/wiki/Sand_casting

    The sand mixture is tamped down as it is added around the pattern, and the final mold assembly is sometimes vibrated to compact the sand and fill any unwanted voids in the mold. Then the pattern is removed along with the channel plug, leaving the mold cavity. The casting liquid (typically molten metal) is then poured into the mold cavity.

  9. Masonry - Wikipedia

    en.wikipedia.org/wiki/Masonry

    A mason laying a brick on top of the mortar Bridge over the Isábena river in the Monastery of Santa María de Obarra, masonry construction with stones. Masonry is the craft of building a structure with brick, stone, or similar material, including mortar plastering which are often laid in, bound, and pasted together by mortar.

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