a skew hexagon is a skew polygon with 6 vertices and edges but not existing on the same plane. the interior of such an hexagon is not generally defined. a skew zig-zag hexagon has vertices alternating between two parallel planes. a regular skew hexagon is vertex-transitive with equal edge lengths.
turning is a machining process in which a cutting tool, typically a non-rotary tool bit, describes a helix toolpath by moving more or less linearly while the workpiece rotates.. usually the term 'turning' is reserved for the generation of external surfaces by this cutting action, whereas this same essential cutting action when applied to internal surfaces holes, of one kind or another is .
an air compressor is a device that converts power using an electric motor, diesel or gasoline engine, etc. into potential energy stored in pressurized air i.e., compressed air .by one of several methods, an air compressor forces more and more air into a storage tank, increasing the pressure. when the tank's pressure reaches its engineered upper limit, the air compressor shuts off.
human factors and ergonomics commonly referred to as human factors is the application of psychological and physiological principles to the engineering and design of products, processes, and systems.the goal of human factors is to reduce human error, increase productivity, and enhance safety and comfort with a specific focus on the interaction between the human and the thing of interest.
a ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races.. the purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. it achieves this by using at least two races to contain the balls and transmit the loads through the balls.
pringles is an american brand of potato and wheat-based stackable snack chips. it is owned by kellogg's. originally developed by procter & gamble p&g in 1967, and marketed as 'pringle's newfangled potato chips', the brand was sold to kellogg's in 2012. as of 2011 pringles are sold in more than 140 countries.
a robotic arm not robotic hand is a type of mechanical arm, usually programmable, with similar functions to a human arm; the arm may be the sum total of the mechanism or may be part of a more complex robot.the links of such a manipulator are connected by joints allowing either rotational motion such as in an articulated robot or translational linear displacement.
a gear or cogwheel is a rotating machine part having cut teeth or, in the case of a cogwheel, inserted teeth called cogs , which mesh with another toothed part to transmit torque.geared devices can change the speed, torque, and direction of a power source.gears almost always produce a change in torque, creating a mechanical advantage, through their gear ratio, and thus may be considered a .
an end mill is a type of milling cutter, a cutting tool used in industrial milling applications. it is distinguished from the drill bit in its application, geometry, and manufacture. while a drill bit can only cut in the axial direction, a milling bit can generally cut in all directions, though some cannot cut axially.
ball mill. a typical type of fine grinder is the ball mill.a slightly inclined or horizontal rotating cylinder is partially filled with balls, usually stone or metal, which grind material to the necessary fineness by friction and impact with the tumbling balls. ball mills normally operate with an approximate ball charge of 30%.
a paper mill is a factory devoted to making paper from vegetable fibres such as wood pulp, old rags, and other ingredients.prior to the invention and adoption of the fourdrinier machine and other types of paper machine that use an endless belt, all paper in a paper mill was made by hand, one sheet at a time, by specialized laborers.
stainless steel cycle. the stainless steel cycle starts with carbon steel scrap, primary metals, and slag. the next step is the production by steel mills of hot rolled and of cold finished steel products, with some scrap which is directly reused in the melting shop.
a cam is a rotating or sliding piece in a mechanical linkage used especially in transforming rotary motion into linear motion. it is often a part of a rotating wheel e.g. an eccentric wheel or shaft e.g. a cylinder with an irregular shape that strikes a lever at one or more points on its circular path. the cam can be a simple tooth, as is used to deliver pulses of power to a steam hammer .
a jig's primary purpose is to provide repeatability, accuracy, and interchangeability in the manufacturing of products. a jig is often confused with a fixture; a fixture holds the work in a fixed location.a device that does both functions holding the work and guiding a tool is called a jig.