Tapany Udomphol المحاضرات

tapany udomphol lectures - villinomartinait

Tapany Udomphol Longitudinal distortion Suranaree University of Technology Sep-Dec 2007 Longitudinal bowing in a fillet-welded T joint Remedies Back step technique •Angular distortion and longitudinal bowing can also be observed in joints made with fillet welds such as fillet-welded T joint

Chapter 2 Forging - EKO Endüstri

closed-die forging Tapany Udomphol Suranaree University of Technology Jan-Mar 2007 Closed-die forging (or impression-die forging) •The workpiece is deformed between two die halves which carry the impressions of the desired final shape •The workpiece is deformed under high

Forging and Sheet Metal Forming - Suranaree University of

Forging and Sheet Metal Forming Dr Tapany Udomphol Automotive Production Engineer by T Udomphol Suranaree University of Technology September 2007 School of Metallurgical Engineering Suranaree University of Technology

Temperature Strain rate Tendency for grain boundary

Tapany Udomphol Subscribe to view the full document Suranaree University of Technology May-Aug 2007 Strengthening from grain boundaries Strengthening from grain boundaries There are two important roles of the grain boundary which acts as a barrier to dislocation motion; 1) Difficulty for a dislocation to pass through two different grain

06 sheet metal forming - SlideShare

Jan 26, 2015 · Schematic diagram of a die set pilot bgprecision Tapany Udomphol 18 Suranaree University of Technology Jan-Mar 2007 Forming method There are a great variety of sheet metal forming methods, mainly using shear and tensile forces in the operation

01 fundamentals of metalworking - SlideShare

Dec 17, 2012 · Suranaree University of Technology Tapany Udomphol Jan-Mar 2007 16 Flow curves • Flow curve indicates whether metal is readily deformed at given conditions, ie, strain rate, temperature

(PDF) Tapany Udomphol | suryana suryana - Academiaedu

Suranaree University of Technology Tapany Udomphol May-Aug 2007 Superplastic flow The superplastic flow is given by 2 • σ bD gb ε = 10 8 3 Eq3 For grain boundary diffusion E L 2 • σ D ε = 2 × 10 2o 9 Eq3 For lattice self-diffusion E L Where L is the mean linear intercept measure of grain size

Fundamental concept of metal rolling - mtixtl

Fundamental concept of metal rolling 1) The arc of contact between the rolls and the metal is a part of a circle 2) The coefficient of friction , µµµµ, is constant in theory, but in reality µµµµvaries along the arc of contact 3) The metal is considered to deform plastically during rolling 4) The volume of metal is …

in this case n 2 barb2right m 05 The predominant mechanism

Tapany Udomphol Suranaree University of Technology May-Aug 2007 Composition of some high Composition of some high temperature alloys temperature alloys Tapany Udomphol Suranaree University of Technology May-Aug 2007 Presentation of engineering Presentation of engineering creep data creep data Creep strength is defined as the stress at a given

(PDF) Fracture mechanics | arnon onsanthia - Academiaedu

Suranaree University of Technology Tapany Udomphol May-Aug 2007 Introduction σ Griffith proposed that an existing 12 2 Eγ s crack will propagate when the σf = released elastic strain energy is at π a 2a least equal to the energy required Eq1 to create the new crack surface

Analysis of forming- Slipline Field Method - NPTEL

Analysis of forming –Slipline Field Method 11 Methodology of slipline field analysis: Slab analysis of the forming process is considered approximate due to the assumption of homogeneous deformation of material Slipline field analysis is more accurate as it considers the non-homogeneous

Sheet Metal Operations: Shearing - YouTube

Sep 03, 2017 · This lecture describes the fundamentals of sheet metal operations including working principle, mechanisms involved and various processes etc

Lecture 9 - Hardness test Pages 1 - 25 - Text Version

The hardness ismeasured according to thedepth of indentation,under a constant loadSuranaree University of Technology Tapany Udomphol May-Aug 2007 Rockwell hardness test ptliPrincipal of the Rockwell Test• Position the surface …

Chapter 4 - Extrusion - ResearchGate

Suranaree University of Technology Jan-Mar 2007 What is extrusion? Extrusion is the process by which a block/billet of metal is reduced in cross section by forcing it to flow through a die orifice

Chapter 10 Torsion Tests - MAFIADOCCOM

Tapany Udomphol May-Aug 2007 Elastic properties and yield strength • The elastic properties in torsion can be obtained by using the torque at the proportional limit (~ 004 radm-1) where the shear stress is calculated corresponding to the twisting moment from Eq4 or Eq5

Research works produced by Tapany Udomphol | Suranaree

4 research works produced by Tapany Udomphol with 6 citations and 51 reads, including: The Fabrication of Aluminium Composites via Stir-Mixed and Particulate-Injection Casting

Chapter 5 - Drawing of rod-wire and tubes - Oilservethai

Tapany Udomphol Suranaree University of Technology Jan-Mar 2007 Objectives •This chapter provides fundamental background on processes of drawing of rods, wires and tubes •Mathematical approaches for the calculation of drawing load will be introduced •Finally drawing defects occurring during the …

The weld microstructure - MAFIADOCCOM

Tapany Udomphol Sep-Dec 2007 Solidification modes • The fusion zone microstructure depends on the solidification behaviour of the weld pool, which controls the size and shape of the grains, segregation, and the distribution of inclusions and porosity • As constitutional supercooling increases, the solidification mode changes from planar

Lecture 13 - Creep and stress rupture - Yola

Tapany Udomphol Suranaree University of Technology May-Aug 2007 Objectives • This chapter provides the understanding of deformation and fracture behaviour of material at high temperature • Creep and stress rupture tests will be compared such that the interpretation of test data will be discussed for engineering applications This will

Faraz - Term Paper

Tapany Udomphol Jan-Mar 2007 Objectives • This chapter provides information on different types of metal rolling processes which can also be divided in to hot and cold rolling process • Mathematical approaches are introduced for the understanding of load calculation in rolling processes

Lecture 5 - Dislocation theory

Dislocation theory Subjects of interest (continued) •Dislocation climb •Intersection of dislocations •Jogs •Dislocation sources •Multiplication of dislocations •Dislocation-point defect interactions •Dislocation pile-ups Chapter 5 Tapany Udomphol sygdomfo

Biographical Data - metalsutacth

Tapany Patcharawit 2001-2005 PhD (Metallurgy and Materials) The University of Birmingham, UK 2000-2001 MPhil (The Science and Engineering of Materials) Udomphol, M Bunma, R Buntan, The Fabrication of Aluminium Composites via Stir-Mixed and Particulate-Injection Casting, Advanced

Guidelines for the Extrusion cabledatasheet | PDF

Suranaree University of Technology Tapany Udomphol Jan-Mar 2007 cabledatasheet 19102015 p 4 • The reaction of the extrusion billet with the container and die results in high compressive stresses which are effective in reducing cracking of materials during primary breakdown from the ingot • This helps to increase the utilisation

Faraz - Term Paper

Tapany Udomphol Jan-Mar 2007 Objectives • This chapter provides information on different types of metal rolling processes which can also be divided in to hot and cold rolling process • Mathematical approaches are introduced for the understanding of load calculation in rolling processes

Introduction to mechaical metallurgy course - Foundry Gate

Tapany Udomphol Suranaree University of Technology May-Aug 2007 Fracture mechanics Fracture toughness testing Parameters: • Fracture toughness KIC • Crack tip opening displacement CTOD • J-integral J • Resistance of materials to crack propagation (to failure)

lecture 5 - Titanium and titanium alloys Pages 51 - 78

β titanium alloysSuranaree University of Technology Tapany Udomphol May-Aug 2007 Forming of titanium alloys Most of titanium products are mechanically deformed by the following processes• Forging• Sheet and ring rolling• Machining• Power metallurgy• Superplastic forming/diffusion bondingSuranaree University of Technology Tapany

Chapter 7 - Machining of metals

Tapany Udomphol Suranaree University of Technology Jan-Mar 2007 Objectives •This chapter aims to provide basic backgrounds of different types of machining processes and highlights on an understanding of important parameters which affects machining of metals

Ref 07 )sheet metal forming by Tayfun Tezanlar - Issuu

Chapter 6 Sheet-metal forming Subjects of interest • Introduction/objectives • Deformation geometry • Forming equipments • Shearing and blanking • Bending

Laser Beam Welding: Part Two :: Total Materia Article

Finding welding materials in the Total Materia database The Total Materia database contains many thousands of materials suitable for welding applications across a large range of countries and standards Where available, full property information can be viewed for materials including chemical composition, mechanical properties, physical properties and carbon equivalent data as well as advice

Chapter 8 Advanced metal forming processes

Tapany Udomphol Suranaree University of Technology Jan-Mar 2007 • This chapter aims to provide additional information on several techniques of metal forming processes other than those conventional process already mentioned in previous chapters

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