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Ironing is a sheet metal forming process that uniformly thins the workpiece in a specific area. This is not to be mistaken with fabric Ironing. This process involves using force to evenly flatten a piece of sheet metal into a uniform shape. [1]
A metal surface is finished by hammering it with a planishing panel hammer or slapper file against a shaped surface called a planishing stake that is held in a vise or a mounting hole in a blacksmith's beak anvil, [2] or against hand-held, shaped, metal tools that are known as dollies or anvils. The shape of the stake or dolly has to match the ...
In metallurgy, peening is the process of working a metal's surface to improve its material properties, usually by mechanical means, such as hammer blows, by blasting with shot (shot peening), focusing light (laser peening), or in recent years, with water column impacts (water jet peening) and cavitation jets (cavitation peening). [1]
attaches to the hounds of the foremast, or comes on deck. mizzen-topmast stay goes to the hounds of the main-mast. top-gallant, royal, or any other masts have each a stay, named after their respective masts springstay is a kind of substitute nearly parallel to the principal stay, and intended to help the principal stay to support its mast ...
Ridge – A post extending from the ground or foundation to the ridge beam. Samson – similar to a prick post or puncheon. Puncheon: 1) A short, stout post may be identical to a prick post; 2) Puncheon may also mean a split log or heavy slab of timber with the face smoothed, used for flooring or construction.
The orthotropic deck may be integral with or supported on a grid of deck framing members, such as transverse floor beams and longitudinal girders. All these various choices for the stiffening elements, e.g., ribs, floor beams and main girders, can be interchanged, resulting in a great variety of orthotropic panels.
However, studies have shown that it can be applied to polymer and composite sheets too. Generally, the sheet is formed by a round tipped tool, typically 5 to 20mm in diameter. The tool, which can be attached to a CNC machine, a robot arm or similar, indents into the sheet by about 1 mm and follows a contour for the desired part. It then indents ...
Corrugated galvanised iron (CGI) or steel, colloquially corrugated iron (near universal), wriggly tin (taken from UK military slang), pailing (in Caribbean English), corrugated sheet metal (in North America), zinc (in Cyprus and Nigeria) or custom orb / corro sheet (Australia), is a building material composed of sheets of hot-dip galvanised ...