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Machining processes First year Production Engineering Department Methods Of Holding WorkPiece Eslam Bahaa Saleh Faculty Of Engineering, Alex Univ. 1
WP Clamping Method: Holding a W.P To an engine lathe depends mainly upon the geometrical features of the WP. 2
Holding Hollow Cylindrical WP: Cylindrical W.Ps Have a certain holding  methods to the engine lathe but first we need to know if the WP is Hollow or Solid. Hollow Cylindrical W.Ps are either Tapered or Straight. 3 Cylindrical W.PS>Hollow> Tapered Cylindrical W.PS>Hollow> Straight ,[object Object]
The Mandrel is pushed inside the WP till it is fixed.
We use a Straight Mandrel.
We fix the W.P to the mandrel using a screw and nut.           Tapered Mandrel                    Straight Mandrel
WP Clamping Method: 4
Holding Solid Cylindrical WP: Solid Cylindrical W.Ps are either Shortor Long. 5 Cylindrical W.PS>Solid> Short Cylindrical W.PS>Solid> Long ,[object Object]
We Hold it using “Between Centers” Method.                 3-Jaw Chuck    “Between Centers” Method.                Collets
WP Clamping Method: 6
Holding Non-Cylindrical WP: Non-Cylindrical W.Ps Have a certain holding  methods to the engine lathe but first we need to know if the WP is Regular Shapeor Irregular Shape. Regular shapes are either Short or Long. 7 Regular Shape>Long Regular Shape>Short ,[object Object]

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Methods of holding work piece