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Types of mechanical forces

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A force exerted on a body can cause a change in either the shape or the motion of the body.The unit of force in SI system is the Newton(N) and CGS system is dyne.No solid body is perfectly rigid and when force are applied to it,changes in dimension occur.such changes are not always perceptible to the human eye since they are negligible. For the example,The span of a bridge will sag under the weight of a vehicle and a spanner will bend slightly when tightening a nut. It is also important for civil engineers and designers to appreciate the effects of forces on materials.Together with their mechanical properties of the materials. There three main types of mechanical forces that can act on a body.They are 1)Tensile force 2) compressive force and 3) shear force
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Difference between capstan and turret lathes.

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Difference between Capstan Lathe and Turret Lathe Points : Difference between Capstan Lathe and Turret Lathe, comparison of Capstan Lathe and Turret Lathe
Difference between Capstan Lathe and Turret Lathe

Capstan Lathe

Turret Lathe
1.Capstan lathe is limited to the manufacture of work from bar fed during the empty spindle held in a collect and the standard machines contain a condition for fixing a jaw chuck to the spindle nose thus that bars, castings and forging might be held.Spindle nose of the this machine is threaded outwardly for screwing faceplate force plate, lathe chuck or any other work holding device proper to the job stock. Inside hole is tapered to get the lathe center and proper collect for bar holding.
2.Tailstock does not give for center support of bar stock and rising of shank tools. Tail stock hold up is not required as short piece bar stock is use for work production.Tailstock is moreover give for center hold up of the bar stock and rising of shank tools. Tail stock be able to bolted at the great right hand of the bed or among carriage with turret slide.
3.Capstan head move about on the capstan slide in the move familiar by the stop while the whole unit left over bolted on the right hand side of the bed ways.Turret head rise on the ram slide move longitudinally in the move familiar by the stop screws. Whole unit be able to slide on the bed ways and after that locked at the necessary location.
4.Lead-screw does not give and thread is produced by using the threading head mount on capstan held.Lead screw gives for cutting particular and multi-start threads on a preferred length of work by single point tool of thread cutting. Thread head can moreover be use for the normal threads.
5.Capstan lathe is give by the stop rolls to decide the longitudinal and cross movement of the tools at their cycle.Turret is too given by the stop rolls to determine the longitudinal and cross movement of the tools at their cycle.
6.The carriage is give with front tool post (single-way or four-way) with rear tool post moreover.The carriage is give by the turret tool-post and rear tool post used for holding tools.
7.Capstan lathe is use of the mass production of small size equal part.Turret lathe is use intended for the mass production of large size equal parts.
8.Feed rod give for longitudinal feed.Feed rod is not give for longitudinal feed.

Comments

  1. Himanshu Rana22 September 2018 at 06:13

    Plz add difference between turret and capistan and centre lathe

    ReplyDelete

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