Extrusion Subjects of interest ppsx
Extrusion Subjects of interest ppsx
... in extrusion
• Analysis of the extrusion process
• Cold extrusion and cold-forming
• Hydrostatic extrusion
• Extrusion of tubing
• Production of seamless pipe and tubing
Chapter 4
Subjects of interest
Tapany ... Suranaree University of Technology Jan-Mar 2007
Extrusion
Extrusion
• Introduction/objectives
• Classification of extrusion processes
• Extrusion equip...
Magnesium and its alloys Subjects of interest ppsx
... those of Al alloys.
Tapany Udomphol
Suranaree University of Technology May-Aug 2007
Magnesium and its alloys
Magnesium and its alloys
Subjects of interest
• Introduction/Objectives
• Production of ... University of Technology May-Aug 2007
Objectives
Objectives
• This chapter provides fundamental knowledge of
different methods of productions / heat treatments of
magnesium...
Forging Subjects of interest docx
... consists only of two basic types
• extrusion (flow parallel to the direction of
the die motion)
• upsetting ( flow perpendicular to the
direction of the die motion).
- However both types of metal ... mass
v = velocity of ram at start of
deformation
g = acceleration of gravity
p = air or steam pressure
acting on ram cylinder on
downstroke
A = area of ram cylinder
H = hei...
Rolling of metals Subjects of interest pdf
... Udomphol
Suranaree University of Technology Jan-Mar 2007
Seamless rings
Ring rolling
Tapany Udomphol
Suranaree University of Technology Jan-Mar 2007
Fundamental concept of metal rolling
1) The arc of contact between ... and front tension to the strip.
• The speed of each set of rolls is synchronised so that the input speed of
each stand is equal to the output speed of precedi...
Drawing of rods, wires and tubes Subjects of interest docx
... University of Technology Jan-Mar 2007
The effect of die angle on the total energy
required to cause deformation
U
T
U
P
α
αα
α
*
U
f
U
r
α
αα
α
U
Components of total energy of deformation
Ideal work of ... University of Technology Jan-Mar 2007
Consider the problem of strip drawing of a wide sheet, (Dieter p. 509)
• A wide strip is being drawn
through a frictionless die
wit...
Sheet-metal forming Subjects of interest doc
... Suranaree University of Technology Jan-Mar 2007
Hydroforming
Stamp hydroforming machine setup
with a fluid supplied from one side of
the draw blank
www.egr.msu.edu
A drawing of hydroforming setup ... radius of curvature before release of load
R
f
= the radius of curvature after release of lead
and R
o
< R
f
Solutions:
compensating the springback by bending to a
smaller rad...
Machining of metals Subjects of interest pps
... processes
• Non traditional machining processes
• Economics of machining
Chapter 7
Subjects of interest
Tapany Udomphol
Suranaree University of Technology Jan-Mar 2007
vF
vF
energyTotal
engergyShearing
h
ss
=
From ... ratio of the chip length L
c
, to
the length of the workpiece from which it came, L
w
• If L
c
is unknown, it can be determined by
measuring the weight of chip...
Advanced metal forming processes Subjects of interest docx
... Superplastic forming
• Pressing and sintering
• Isostatic pressing
Subjects of interest
Chapter 8
Tapany Udomphol
Suranaree University of Technology Jan-Mar 2007
• Edwards, L. and Endean, M., Manufacturing ... melting point of the
material, but at a temperature sufficiently high to
allow an acceptable rate of diffusion to occur.
Sintered products
Tapany Udomphol
Suranaree Univer...
Hardness Test Subjects of interest potx
... finally factors affecting hardness of
metals will be discussed.
Tapany Udomphol
Suranaree University of Technology May-Aug 2007
Hardness Test
Hardness Test
Subjects of interest
• Introduction/objectives
• ... from ridging or piling up of the metal around the faces of the
indenter. Produce a low value of contact area giving too high value.
Tapany Udomphol
Suranaree Universit...
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