PPT: Design of Permanent Joints Mechanical Engineering Notes | EduRev

Machine Design

Mechanical Engineering : PPT: Design of Permanent Joints Mechanical Engineering Notes | EduRev

 Page 1


Weld Joint Geometr y and
Weld Joint Geometr y and
Welding Symbols
Welding Symbols
  
  
Page 2


Weld Joint Geometr y and
Weld Joint Geometr y and
Welding Symbols
Welding Symbols
  
  
ADVANTAGES & DISADVANTAGES 
ADVANTAGES & DISADVANTAGES 
OF WELDING JOINTS
OF WELDING JOINTS
ADVANTAGES DIS AD V ANTAGES
•  Welded joints have low initial cost
•  The process is noiseless.
•  welded joints are greater in strength
•  Less machining is required after 
welding.
•  Easy to inspect i.e. by x-rays without 
destroying the piece.
•  Welded joint can easily be repaired.
• Welded joint cannot be used for 
impact load and vibrations
• Being permanent joint the welded 
joint cannot be assembled and 
reassembled like screwed joints
Page 3


Weld Joint Geometr y and
Weld Joint Geometr y and
Welding Symbols
Welding Symbols
  
  
ADVANTAGES & DISADVANTAGES 
ADVANTAGES & DISADVANTAGES 
OF WELDING JOINTS
OF WELDING JOINTS
ADVANTAGES DIS AD V ANTAGES
•  Welded joints have low initial cost
•  The process is noiseless.
•  welded joints are greater in strength
•  Less machining is required after 
welding.
•  Easy to inspect i.e. by x-rays without 
destroying the piece.
•  Welded joint can easily be repaired.
• Welded joint cannot be used for 
impact load and vibrations
• Being permanent joint the welded 
joint cannot be assembled and 
reassembled like screwed joints
GENERAL WELDING SYMBOL
GENERAL WELDING SYMBOL
Page 4


Weld Joint Geometr y and
Weld Joint Geometr y and
Welding Symbols
Welding Symbols
  
  
ADVANTAGES & DISADVANTAGES 
ADVANTAGES & DISADVANTAGES 
OF WELDING JOINTS
OF WELDING JOINTS
ADVANTAGES DIS AD V ANTAGES
•  Welded joints have low initial cost
•  The process is noiseless.
•  welded joints are greater in strength
•  Less machining is required after 
welding.
•  Easy to inspect i.e. by x-rays without 
destroying the piece.
•  Welded joint can easily be repaired.
• Welded joint cannot be used for 
impact load and vibrations
• Being permanent joint the welded 
joint cannot be assembled and 
reassembled like screwed joints
GENERAL WELDING SYMBOL
GENERAL WELDING SYMBOL
Five Basic Welded Joints 
Five Basic Welded Joints 
Butt Joint 
 
Butt joint- a joint 
between two 
members aligned 
approximately in 
the same plane
Page 5


Weld Joint Geometr y and
Weld Joint Geometr y and
Welding Symbols
Welding Symbols
  
  
ADVANTAGES & DISADVANTAGES 
ADVANTAGES & DISADVANTAGES 
OF WELDING JOINTS
OF WELDING JOINTS
ADVANTAGES DIS AD V ANTAGES
•  Welded joints have low initial cost
•  The process is noiseless.
•  welded joints are greater in strength
•  Less machining is required after 
welding.
•  Easy to inspect i.e. by x-rays without 
destroying the piece.
•  Welded joint can easily be repaired.
• Welded joint cannot be used for 
impact load and vibrations
• Being permanent joint the welded 
joint cannot be assembled and 
reassembled like screwed joints
GENERAL WELDING SYMBOL
GENERAL WELDING SYMBOL
Five Basic Welded Joints 
Five Basic Welded Joints 
Butt Joint 
 
Butt joint- a joint 
between two 
members aligned 
approximately in 
the same plane
Different Edge Shapes 
Different Edge Shapes 
and Symbols for some 
and Symbols for some 
Butt-Joints
Butt-Joints
Read More
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