RELATIVITY BETWEEN PREPARATION OF SPECIMENS AND RESULTS OF MECHANICAL PROPERTY TESTING FOR METALLIC MATERIALSLECTURE No.1 RELATIVITY FOR LOCATION OF SAMPLING & PROCESS MACHINING AND RESULTS OF MECHANICAL PROPERTY TESTING

The relativity for preparation of specimens and results of mechanical testing for metallic materials was introduced in a systematic way. The requirement of Chinese standards to location of sampling and process machining of test pieces for mechanical testing ,the needing attention problems of the process for sampling and preparation of test pieces for mechanical testing,the examine of quality for process machining etc. were also discussed. The results showed that the relativity for preparation of specimens and results of mechanical testing for metallic materials were very close relationship. For the reason the location of sampling and process machining of test pieces for mechanical testing must be in processing strictly according to the requirement of Chinese standards. After the process machining must inspect the quality of processing. The exactitude of the results for mechanical testing is guaranteed.