Defect analysis method for 410 material forging

Abstract

The invention relates to a defect analysis method for a 410 material forging. The defect analysis method comprises the following steps: 1, determining of a forging material; 2, ultrasonic flaw detection; 3, dissecting and sampling; 4, low-power macroscopic inspection, 5, metallographic inspection, 6, scanning electron microscope inspection and 7, conclusion analysis. According to the method, ultrasonic flaw detection, dissection and sampling, low-power macroscopic examination, metallographic examination, heat treatment examination and scanning electron microscope examination are carried out on the forged round blank and the round bar forge piece, specific defect types on the forged round blank and the round bar forge piece are gradually examined, formation reasons of defects are compared and analyzed, instructive suggestions are provided for eliminating the defects, resource waste caused by quality defects in the production process of forged round blanks is reduced, scrapped parts of round bar forgings in the forging process are reduced, essential reasons for defect generation are found, and waste of manpower and material resources caused by repeated defect detection is avoided.

Description

technical field [0001] The invention relates to a defect analysis method of a 410 material forging, belonging to the technical field of forging defect analysis. Background technique [0002] In the field of heavy machinery manufacturing, the use of large forgings is inevitable. Most of the forgings are bulky, with high manufacturing cost and complex manufacturing process, and various internal or external defects are prone to occur in the manufacturing process. In the process of manufacturing and forming forgings, due to the complexity of the forming process and the cumbersome operation process, it brings great risks to whether the forgings can finally meet the requirements of use. After the forging process of forgings is completed, defect detection will be carried out to find out whether there will be metal inclusions, segregation, loose structures, etc. in the forgings during the forging process. The traditional defect detection is a unified detection method. No matter wh...

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Problems solved by technology

The traditional defect detection is a unified detection method. No matter what kind of material the forging is or what forging process the forging has undergone, it has great limitations, and it is impossible to systematically analyze a specific forging according to the material and forging process of the forging. and research, it is difficult to tell whether the defect is caused by the forging process

In the large-scale manufacturing process of forgings, it is impossible to find solutions to the defects of special forgings in a timely manner, repeated inspections, time-consuming and labor-intensive, and increase economic losses. It is difficult to provide substantial solutions to upstream manufacturers that produce blanks Fundamentally solve the generation of forging defects

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