Original welded joints and a welding repair joints fatigue test, the test results concluded that: a welding repair on the bogie frame welded joint fatigue performance has improved.

In the original solder joints and a solder joint supplement for fatigue testing of the method, the results from the pilot came to the conclusion that a solder joint supplement knee framework of welded fatigue performance has improved.

Uses and one time welds to the primitive weld joint makes up the attachment to carry on the endurance test the method, draws the conclusion from the test result: One time welds makes up has the promotion to the bogie skeleton weld joint weary performance.

Welding joint and weld joints used on the original method of fatigue testing, conclusions drawn from the test results: welding on fatigue properties of welded joints on bogie has improved.

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