This document discusses linear friction welding of stainless steel SS304 to low alloy steel 16MnCr5. Tensile and hardness tests were conducted on the base materials to determine their properties. The materials were then friction welded using optimized parameters. Future work includes determining the chemical properties and tensile results of the friction welding joints and analyzing the friction welding process parameters.

1. FRICTION WELDING PROPERTIES
OF SS304 WITH 16MnCr5

2. ABSTRACT
• Linear friction welding involves solid state joining of
materials through the relative motion of two components
under compressive forces.
• The linear friction welding of stainless steel of SS304 to
the low alloy steel of 16MnCr5 to be done
• Tensile tests to be performed to both the base material
before welding to find out the strength of each material.
• The chemical composition for both the materials was find.
• The friction welding parameters like “Heating Pressure,
Forging Pressure, Heating time, Forging time and also
Speed” would be kept same for both the similar/dissimilar
joints.

3. OBJECTIVES
• To conduct the mechanical tests namely
tensile test & hardness test on SS304 &
16MnCr5.
• To determine the chemical composition of
base materials.
• The parts having same diameter and length,
same materials and dissimilar materials to be
welded with optimized process parameter.

4. INTRODUCTION
• Linear friction welding involves solid state
joining of materials through the relative
motion of two components under
compressive forces.
• This pressurized reciprocating motion results
in plasticization of the weld interface between
two work pieces one that is stationary and the
other that oscillates linearly.

5. LITERATURE SURVEY
• Friction welding - An Overview
• Friction welding - Process Principles
• Friction welding - Process - Application –
testing

6. WORK DONE SO FAR
• Chemical properties for SS304
• Chemical properties for 16MnCr5
• Tensile strength test for SS304
• Tensile strength test for 16MnCr5

7. Chemical properties of SS304
C- 0.0220% Si-0.424% Mn-1.51% P-0.0150%
S-0.00910 % Cr-18.53% Ni-8.47% Mo-0.299
Al- 0.00480% Cu-0.384% Co-0.0980%
Ti-0.00850% Nb-0.0150% V-0.0680%
W-0.0300% Pb-<O.OO200% Mg-0.0220%
B-0.00200% Sn-0.0200% Zn-0.0260%
As-0.00240% Bi-<0.00200% Ca-0.00070%
Ce-0.0260% Zr-0.00970% La-<0.00100 Fe-70%

8. Chemical properties of 16MnCr5
Steel Values
carbon 0.16 %
Sulphur 0.25%
Manganese 1.15%
Chromium 0.95%
Silicon <0.035%

9. Tensile strength for base metals
PROPERTIES SS304 16MnCr5
TENSILE STRENGTH
(kN/mm2)
0.6
0.163
YIELD STRESS (kN/mm2) 0.215
0.028
%ELONGATION 60
20.5
HARDNESS(RHC) 70
21
UTS(kN/mm2) 0.505
0.169

10. WORK TO BE DONE
• Parameter for friction welding process
• Chemical properties for friction welding joints
• Tensile results for friction welding joint

11. PARAMETER FOR FRICTION WELDING
PROCESS
The parts having same diameter of the respective materials were
to be weld with IWS process parameters.
Base Dia
(mm)
Relative
Speed
(rpm)
Axial
pressure
Heating
(kg/ mm2)
Axial
pressure
Forging
(kg/mm2)
Upset
(mm)
dissimilar 15 1500 12 30 6

12. REFERENCE
• Friction welding - An Overview by T.S.Kasturi - IWS journal
about friction welding and friction stir welding (2011)
• Friction welding - Process Principles by Dr.K.A.Asok kumar -
IWS journal about friction welding and friction stir welding
(2011)
• Friction welding - Process - Application – testing by
Dr.K.G.K.Murti - IWS journal about friction welding and
friction stir welding (2011)