Hardness Test Subjects of interest potx
Hardness Test Subjects of interest potx
... 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 • Brinell hardness • ... hardness • Meyer hardness • Vickers hardness • Rockwell hardness • Microhardness tests • Relationship between hardness and the flow curve • Hardness-...
Ngày tải lên: 06/07/2014, 09:20
Forging Subjects of interest docx
... 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 = height of the ram drop …Eq ... 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). - Howeve...
Ngày tải lên: 06/07/2014, 09:20
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...
Ngày tải lên: 06/07/2014, 09:20
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...
Ngày tải lên: 06/07/2014, 09:20
Extrusion Subjects of interest ppsx
... 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 ... hot-shortness range. • Oxidation of billet and extrusion tools. • Softening of dies and tools. • Difficult to provide adequate lubrication. 1) The initial temperature of...
Ngày tải lên: 06/07/2014, 09:20
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...
Ngày tải lên: 06/07/2014, 09:20
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 ... material Tapany Udomphol Suranaree University of Technology Jan-Mar 2007 Actions of presses (according to number of slides, which can be operated independently of each other.) 1...
Ngày tải lên: 06/07/2014, 09:20
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...
Ngày tải lên: 06/07/2014, 09:20
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...
Ngày tải lên: 06/07/2014, 09:20
REGULATION OF INTEREST RATE BY THE STATE BANK OF VIETNAM (SBV) potx
... Finance Regulation of Interest Rate by the State Bank of Vietnam (SBV) Page 18 of 20 Therefore SBV should set up interbank interest rate as targeted interest rate in each period of time. - SBV ... because of the wrong interest rates policy 2.1 The shock of interest rates during 1990s In 1994, instead of lowering the interest rate according to the policy ado...
Ngày tải lên: 15/03/2014, 01:20