This document discusses tube expansion, which is defined as eliminating diameter differences between two pipe ends to be joined with welding. The key steps of the tube expansion process include preparing the tube sheet, properly expanding the tubes using a tube expander, and ensuring the expansion is within limits. Tube expansion creates tension between the tube and tube sheet to form a leak-proof joint and can minimize buckling or bending in the tubes.

1. TUBE EXPANSION
-PALASH P. CHAUDHARI

2. CONTENTS
 ABSTRACT
 DEFINATION OF TUBE EXPANSION
 TUBE SHEET PREPARATION
 PROCEDURE FOR EXPANSION
 EXPANSION LIMIT
 TIPS FOR GOOD EXPANSION
 TUBE EXPANDER
 TUBE PULLER
 TUBE REMOVAL
 CONCLUSION

3. ABSTRACT
Tube expansion means elimination of diameter differences
between two pipe end and are joint with welding .The
process is carried out to prevent stress induced in the tubes
due to expansion and contraction. The process is also useful
to avoid misalignment.
In this process tension is created between tube and tube
sheet to make the joint leak proof. In some cases buckling
and bends are induced in the tubes, which are minimized by
tube expansion.
Tube expansion has minimum distortion of tube sheet
and has high reliability and reduces stress corrosion.

4. DEFINATION OF TUBE EXPANSION
Definition:-Elimination of diameter difference between
the two pipe ends to be joined with welding (girth weld).