CHAPTER 1 Introduction to manufacturing Process and Properties of Metal -Vishal Sir
What is manufacturing Process? Raw Materials Manufacturing Process Useful Job
Metal shaping process: Casting process
Metal shaping process: Embossing
Metal shaping process: Rolling
Metal shaping process: Bending
Metal shaping process: Forging
Metal shaping process: Spinning
Metal shaping process: Drawing
Metal shaping process: Shot peening
Metal shaping process: Extrusion
Metal shaping process: Coining
Metal shaping process: Forming
Metal Joining Process: Welding
Metal Joining Process: Brazing
Metal Joining Process: Soldering
Metal Joining Process: Riveting
Difference between Soldering, Welding and Brazing Welding is done between two same metals. Whereas brazing is used to joint different metals at very high temperature. Soldering is same as brazing, except it takes place at comparatively low temperature. Welding: Welding rods Brazing: Filler metal rod Soldering: Tin alloys
Metal Cutting Process: Turning
Metal Cutting Process: Planing
Metal Cutting Process: Grinding
Metal Cutting Process: Shaping
Metal Cutting Process: Hobbing
Metal Cutting Process: Drilling
Metal Cutting Process: Threading
Metal Cutting Process: The boring tool is a single-point cutting tool, which can be set to cut the desired diameter by using an adjustable boring head. Boring operation Boring
Metal Cutting Process: Slotting A milling operation that cuts a narrow part into the surface of a workpiece
Metal Cutting Process: Reaming
Metal Cutting Process: Gear Cutting
Metal Cutting Process: Broaching
Metal Cutting Process: Shaving
Metal Finishing Process Lapping
Metal Finishing Process Electroplating
Metal Finishing Process Honning
Metal Finishing Process Metal Spraying
Metal Finishing Process Polishing
Metal Finishing Process Anodysing
Metal Finishing Process Buffing
Metal Finishing Process Parkerizing
Properties of metal Mechanical & Physical Chemical Electrical
Residual Stresses Residual stresses are stresses that remain in a solid material after the original cause of the stresses has been removed. Residual stresses may be advantageous or disadvantageous.
Residual Stresses Advantages: Corrosion resistance & better fatigue behavior Disadvantages: Less Accuracy Crack and twist occurs Change stress limit
How to remove residual stress? Solution: By heating the metal below RECRYSTALIZATION TEMPERATURE.
Recrystalization Recrystallization is a process by which deformed grains are replaced by a new set of undeformed grains and grow until the original grains have been entirely consumed
Recrystallization Effect Hot Working of metal Recrystallization temperature Melting Point COLD WORKING OF METAL Normal temperature Temperature Rise
Grain Growth