What is the History of the Welding Process? What are Welding Methods? What are the Types of Welding and Advantage of Welding? What Is Welding By heating two or more surfaces to a melting point, welding joins two or more pieces of metal or thermoplastic. Typically, this process involves applying heat and pressure to the surfaces being joined, causing the materials to melt and fuse. History of the Welding History of Welding Method/Process · Earliest stage of welding is known as forge welding · 16th century - Soldering process used for brazing silver and copper · 18th century - Gas welding and Arc welding · 19th century - Fusion welding, Metal electrode welding and Carbon arc welding. · 20th century - Electric arc welding Several new...
As we know the torsion Equation
Where
τ = Torsional stress induced at the outer
surface of the shaft (Maximum Shear stress).
r = Radius of the shaft.
T = Twisting Moment or Torque.
J = Polar moment of inertia.
C = Modulus of rigidity for the shaft material.
l = Length of the shaft.
θ = Angle of twist in radians on a length.
From Torsion Equation we can consider
It can be written as
moment of inertia will be calculated from the following equation.
The polar moment of inertia for a circular cross-section is
From this, the maximum torque that can be transferred thru
the shaft can be written as
From the above equation, we can calculate the unknown
factors. In our case, the shaft diameter is the unknown factor.
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