PPT-Forging Steels Chemistry, Microstructure, Precautions, and Performance

George Krauss University Emeritus Professor Colorado School of Mines 31 st Forging Industry Technical Conference Columbus Ohio September 19 2016 Purpose of Talk Briefly review the metallurgy 0f the alloying heat treatment and properties of forged carbon steels. 1. Introduction Forging Industry Association has produced this Product Design Guide for Forging to assist those who use forgings, and those who do not yet but could use forgings to advantage. The ad Iron–carbon Alloys. Introduction. Several of the various microstructures that may be produced in steel alloys and their relationships to the iron–iron carbon phase diagram are now discussed, and it is shown that the microstructure that develops depends on both the carbon content and heat treatment.. The quality of dried food is affected by a number of factors including quality of raw material, initial microstructure, and drying conditions. The structure of the food materials goes through deformations due to the simultaneous effect of heat and mass transfer during the drying process. Shrinkage and changes in porosity, microstructure and appearance are some of the most remarkable features that directly influence overall product quality. Porosity and microstructure are the important material properties in relation to the quality attributes of dried foods. Fractal dimension (FD) is a quantitative approach of measuring surface, pore characteristics, and microstructural changes [1]. However, in the field of fractal analysis, there is a lack of research in developing relationship between porosity, shrinkage and microstructure of different solid food materials in different drying process and conditions [2-4]. Establishing a correlation between microstructure and porosity through fractal dimension during convective drying is the main objective of this work.. Disiapkan sebagai Materi kuliah . PENGETAHUAN MANUFAKTUR. Dipersiapkan oleh: MOERWISMADHI. ST. . MT. Retired . POLITEKNIK . MANUFAKTUR BANDUNG. E-mail . : . wismadhi. @. gmail.com. Dipersiapkan oleh: MOERWISMADHI. Workshop technology . PRESS OPERATIONS :-. Shearing :- It is a sheet metal cutting operation in which metal is cut along a single straight line.. Blanking :- It is the method of cutting out flat areas to some desired shape. The metal punched out is the required product in blanking and is called “blank”.. 14.1 Introduction. Forging:. a Process in which the work-piece is shaped by compressive forces applied through various dies and tools. . Typical forged products: bolts, rivets, connecting rods, shafts for turbines, gears, hand tools, etc.... Care Coordinators Meetings. 6/16/15. Kim Delahanty, Admin Director. Infection Prevention Clinical Epidemiology. *HAI- Healthcare Associated Healthcare Onset Infection. ** NHSN=CDC National Healthcare Safety Network. Kishalay De (Caltech / . I. ISc. ). Yashwant. Gupta (NCRA-TIFR. ), . Prateek. Sharma (. IISc. ). Science at Low Frequencies 2016. Microstructure emission. Cordes. et al. 1990. Milli. -period timescale (often quasi-periodic) intensity fluctuation in sub-pulse emission.. , HIGH SPEED STEEL –HSS. HIGH CARBON HIGH CROMIUM STEEL – HCHC. OIL HARDENING NON SHRINKING DIE STEEL- OHNS. TOOL STEEL: . THESE ARE HIGH QUALITY SPECIAL STEELS USED FOR CUTTING AND FORMING PURPOSES.. MPG: . Nick . Lindeke, . Markus Knoerr, Zach Shea, Jose Gibaja, . Chris Hudson. , . Freddy Villaverde, Ben Ritchey, . Vince . Angone. ;. . SFTC: . John Walters, Brandon Templin. Who is MPG and what happened to HHI?. CO. Identify and select proper manufacturing process for a specific component.. What is Forging?. It`s a term used for shaping metals and alloys using localized compressive forces.. Stresses induced > Yield strength. Richard . Essery. Anna . Kontu. , Samuel Morin, Martin . Proksch. , Mel . Sandells. MicroSnow2 Workshop, Columbia MD, 13 – 15 July 2015. Uses of microstructure in snow models. Grain size, shape and surface area measures . 1 . , P.Krkotic. 2. , J. O’Callaghan. 3. , F. Perez. 2. , M. Pont. 2. , X. Granados. 1 . , S. Calatroni. 4. , M. Taborelli. 4 . and T. Puig. 1. 1 . Institut. de . Ciència. de Materials de Barcelona, CSIC, . Mahmodul. Hasan . Maheen. Forging Machines. Equipment used in forging machine are:. Forging Hammers. Presses. Forging dies. Forging Hammers: Forging hammers operate . bt. applying an impact load against the work. The term Drop hammer is often used for these machines. Drop hammers are often used for impression die forging. .