Query by tranz mark-mark: what is the introduction of lathe machine?
Best answer:
Answer by Siva Prakash
A lathe is a machine tool which spins a block of material to carry out numerous operations such as cutting, sanding, knurling, drilling, or deformation with tools that are applied to the workpiece to create an object which has symmetry about an axis of rotation.
Lathes are used in woodturning, metalworking, metal spinning, and glassworking. Lathes can be utilized to shape pottery, the most effectively known style becoming the potter’s wheel. Most suitably equipped metalworking lathes can also be utilised to make most solids of revolution, plane surfaces and screw threads or helices. Ornamental lathes can generate 3-dimensional solids of outstanding complexity. The material is held in place by either a single or two centers, at least one particular of which can be moved horizontally to accommodate varying material lengths. Examples of objects that can be created on a lathe consist of candlestick holders, cue sticks, table legs, bowls, baseball bats, crankshafts and cams
Significant categories of lathes
Cue lathes
Cue lathes function related to turning and spinning lathes enabling for a completely radially-symmetrical reduce for billiard cues. They can also be utilized to refinish cues that have been worn over the years.
Glassworking lathes
Glassworking lathes are similar in design and style to other lathes, but differ markedly in how the workpiece is modified. Glassworking lathes gradually rotate a hollow glass vessel more than a fixed or variable temperature flame. The source of the flame may possibly be either hand-held, or mounted to a banjo/cross slide that can be moved along the lathe bed. The flame serves to soften the glass becoming worked, so that the glass in a specific region of the workpiece becomes malleable, and topic to forming either by inflation (“glassblowing”), or by deformation with a heat resistant tool. Such lathes normally have two headstocks with chucks holding the perform, arranged so that they both rotate collectively in unison. Air can be introduced via the headstock chuck spindle for glassblowing. The tools to deform the glass and tubes to blow (inflate) the glass are typically handheld.
In diamond turning, a pc-controlled lathe with a diamond-tipped tool is used to make precision optical surfaces in glass or other optical supplies. Unlike traditional optical grinding, complicated aspheric surfaces can be machined easily. Instead of the dovetailed methods used on the tool slide of a metal turning lathe, the techniques usually float on air bearings and the position of the tool is measured by optical interferometry to obtain the needed regular of precision for optical work. The completed function piece generally calls for a modest quantity subsequent polishing by standard strategies to obtain a finished surface suitably smooth for use in a a lens, but the rough grinding time is substantially reduced for complicated lenses.
Metal spinning lathes
Main report: metal spinning
In metal spinning, a disk of sheet metal is held perpendicularly to the principal axis of the lathe, and tools with polished suggestions (spoons) are hand held, but levered by hand against fixed posts, to create big amounts of torque/pressure that deform the spinning sheet of metal.
Metal spinning lathes are nearly as simple as woodturning lathes (and, at this point, lathes being employed for metal spinning virtually constantly are woodworking lathes). Generally, metal spinning lathes call for a user-supplied rotationally symmetric mandrel, normally produced of wood, which serves as a template onto which the workpiece is moulded (non-symmetric shapes can be carried out, but it is a quite sophisticated method). For instance, if you want to make a sheet metal bowl, you require a strong chunk of wood in the shape of the bowl if you want to make a vase, you need a strong template of a vase, and so forth.
Offered the advent of higher speed, high pressure, industrial die forming, metal spinning is less frequent now than it when was, but nonetheless a worthwhile technique for making one-off prototypes or small batches where die forming would be uneconomical.
Metal spinning lathes
Major report: metal spinning
In metal spinning, a disk of sheet metal is held perpendicularly to the principal axis of the lathe, and tools with polished guidelines (spoons) are hand held, but levered by hand against fixed posts, to develop large amounts of torque/stress that deform the spinning sheet of metal.
Metal spinning lathes are almost as simple as woodturning lathes (and, at this point, lathes being utilised for metal spinning virtually usually are woodworking lathes). Generally, metal spinning lathes need a user-supplied rotationally symmetric mandrel, normally made of wood, which serves as a template onto which the workpiece is moulded (non-symmetric shapes can be accomplished, but it is a very advanced approach). For example, if you want to make a sheet metal bowl, you require a strong chunk of wood in the shape of the bowl if you want to make a vase, you require a solid template of a vase, and so forth.
Given the advent of higher speed, high pressure, industrial die forming, metal spinning is much less widespread now than it as soon as was, but nonetheless a worthwhile method for creating one particular-off prototypes or little batches exactly where die forming would be uneconomical.
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