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Shear (sheet Metal)
There are many types of shears used to shear or cut sheet metal. Types Alligator shear An alligator shear, historically known as a lever shear and sometimes as a crocodile shear, is a metal-cutting shear with a hinged jaw, powered by a flywheel or hydraulic cylinder. Alligator shears are generally set up as stand-alone shears; however, there are types for excavators. The jaw size can range from 4 to 36 in (100 to 910 mm) long. They are generally used to cut ferrous members, such as rebar, pipe, angle iron, or I-beams. Bench shear A ''bench shear'', also known as a ''lever shear'', is a bench mounted shear with a compound mechanism to increase the mechanical advantage. It is usually used for cutting rough shapes out of medium-sized pieces of sheet metal, but cannot do delicate work. For the small shear, it mostly designed for a wide field of applications. Light weight and easy efficient operation, yet very sturdy in construction. The cutting blades fitted are carefully and accur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shearing (manufacturing)
Shearing, also known as die cutting, is a process that cuts stock without the formation of chips or the use of burning or melting. Strictly speaking, if the cutting blades are straight the process is called shearing; if the cutting blades are curved then they are shearing-type operations.Degarmo, p. 424. The most commonly sheared materials are in the form of sheet metal or plates. However, rods can also be sheared. Shearing-type operations include Blanking (metalworking), blanking, Piercing (metalworking), piercing, roll slitting, and trimming. It is used for metal, fabric, paper and plastics. Principle A punch (or moving blade) is used to push a workpiece against the die (or fixed blade), which is fixed. Usually, the clearance between the two is 5 to 40% of the thickness of the material, but dependent on the material. Clearance is defined as the separation between the blades, measured at the point where the cutting action takes place and perpendicular to the direction of blade mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blanking (metalworking)
Blanking and piercing are shearing (metalworking), shearing processes in which a Punch (metalworking), punch and die (manufacturing), die are used to produce parts from coil or sheet stock. Blanking produces the outside features of the component, while piercing produces internal holes or shapes. The web is created after multiple components have been produced and is considered scrap material. The "slugs" produced by piercing internal features are also considered scrap. The terms "piercing" and "punching" can be used interchangeably. Die roll and burr formation Burrs and die roll are typical features of stamped components. Die roll is created when the material being stamped is compressed before the material begins to shear. Die roll takes the form of a radius around the outside edge of the blank and the pierced holes. After compression, the part shears for about 10% of the part thickness, and then fractures free of the strip or sheet. This fracturing produces a raised, jagged edge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metalworking Hand Tools
Metalworking hand tools are Hand tool, hand tools used in the metalworking field. Types Dollies Dolly (tool), Dollies can be handheld, or mounted on a stake or post. Metal dollies come in a variety of sizes and shapes and are used for all types of hand-forming, planishing (smoothing), and shrinking. Files and rasps File (tool), Files and Rasp, rasps are used to provide a smooth Surface finishing, finish for detail work, and are often used in the Aerospace manufacturer, aerospace industry. Forming bags Forming bags, also known as ''soft dollies'', are usually filled with sand or lead, shot and sewn very tightly out of a top-grade canvas or leather. When used correctly, a forming bag allows the user to "shrink" the metal without marking it. Hammers A wide range of body Hammer, hammers are used in metalworking. Hammers range from small, lightweight "pick" hammers (which provide stubby pick point and high-crown peen-type faces that will ding out small dents in hig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snips
Snips, also known as shears, are metalworking hand tools used to cut sheet metal and other tough webs. Workers use various types of snips, with the cutting edges being straight or curved to various degrees. The style of edge employed will depend if a straight sheer or some type of shape cut is necessary. There are two broad categories: ''tinner's snips'', which are similar to common scissors, and ''compound-action'' snips, which use a compound leverage handle system to increase the mechanical advantage. Types Tinner snips Tinner's snips, also known as tinner snips or tin snips, are one of the most popular type of snips. They are defined by their long handles and short blades. They usually have extra wide jaws and are made of drop forged carbon steel. Depending on the size of the blade, tin snips can cut between 24 gauge (0.64 mm) and 16 gauge (1.59 mm) cold rolled low-carbon tin. They can be ranged in length from long. There are two main types: straight-pattern and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nibbler
A nibbler (or pair of nibblers) is a tool for cutting sheet metal with minimal distortion. It may be used for " nibbling": cutting a contour by producing a series of overlapping slits or notches. One type of nibbler operates much like a punch and die, with a blade that moves in a linear fashion against a fixed die, removing small bits of metal and leaving a kerf approximately wide. Another type operates similar to tin snips, but shears the sheet along two parallel tracks apart, rolling up the waste in a tight spiral as it cuts. Nibblers may be manual (hand operated) or powered. Power nibblers are often powered by compressed air, though electrical types also exist. A common DIY nibbler tool is an electric drill A drill is a tool used for making round holes or driving fasteners. It is fitted with a drill bit for making holes, or a screwdriver bit for securing fasteners. Historically, they were powered by hand, and later mains power, but cordless bat ... attachment, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tool
A tool is an Physical object, object that can extend an individual's ability to modify features of the surrounding environment or help them accomplish a particular task. Although many Tool use by animals, animals use simple tools, only human beings, whose use of stone tools dates back hundreds of millennia, have been observed using tools to make other tools. Early human tools, made of such materials as Rock (geology), stone, bone, and wood, were used for the preparation of food, hunting, the manufacture of weapons, and the working of materials to produce clothing and useful Cultural artifact, artifacts and crafts such as pottery, along with the construction of housing, businesses, infrastructure, and transportation. The development of metalworking made additional types of tools possible. Harnessing energy sources, such as Working animal, animal power, wind, or steam, allowed increasingly complex tools to produce an even larger range of items, with the Industrial Revolution markin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Throatless Shear
There are many types of shears used to shear or cut sheet metal. Types Alligator shear An alligator shear, historically known as a lever shear and sometimes as a crocodile shear, is a metal-cutting shear with a hinged jaw, powered by a flywheel or hydraulic cylinder. Alligator shears are generally set up as stand-alone shears; however, there are types for excavators. The jaw size can range from 4 to 36 in (100 to 910 mm) long. They are generally used to cut ferrous members, such as rebar, pipe, angle iron, or I-beams. Bench shear A ''bench shear'', also known as a ''lever shear'', is a bench mounted shear with a compound mechanism to increase the mechanical advantage. It is usually used for cutting rough shapes out of medium-sized pieces of sheet metal, but cannot do delicate work. For the small shear, it mostly designed for a wide field of applications. Light weight and easy efficient operation, yet very sturdy in construction. The cutting blades fitted are carefully and accur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heavy Machinery
Heavy equipment, heavy machinery, earthmovers, construction vehicles, or construction equipment, refers to heavy-duty vehicles specially designed to execute construction tasks, most frequently involving earthwork operations or other large construction tasks. ''Heavy equipment'' usually comprises five equipment systems: the implement, traction, structure, power train, and control/information. Heavy equipment has been used since at least the 1st century BC, when the ancient Roman engineer Vitruvius described a crane powered by human or animal labor in ''De architectura''. Heavy equipment functions through the mechanical advantage of a simple machine that multiplies the ratio between input force applied and force exerted, easing and speeding tasks which often could otherwise take hundreds of people and many weeks' labor. Some such equipment uses hydraulic drives as a primary source of motion. The word plant, in this context, has come to mean any type of industrial equipm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulics
Hydraulics () is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on applied engineering using the properties of fluids. In its fluid power applications, hydraulics is used for the generation, control, and transmission of Power (physics), power by the use of pressure, pressurized liquids. Hydraulic topics range through some parts of science and most of engineering modules, and they cover concepts such as pipe Volumetric flow rate, flow, dam design, fluidics, and fluid control circuitry. The principles of hydraulics are in use naturally in the human body within the vascular system and erectile tissue. ''Free surface hydraulics'' is the branch of hydraulics dealing with free surface flow, such as occurring in rivers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
