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Forgings Quality Problems Arise

Edit: Jingjiang Jinlun Machine Manufacturing Co.,Ltd    Date: Sep 14, 2017

Forgings quality problems arise
 Forgings quality problems arise in many ways. Through the macroscopic and microscopic analysis of Forgings, and sometimes the simulation test is carried out to find out whether the quality problem is caused by the Forgings process itself or other factors (such as raw materials, heat treatment, The process of dealing with or test their own mistakes, etc.); is Forgings process is not reasonable or imperfect process discipline is not strictly serious implementation of the process, which only after careful analysis of the study can be made after the conclusion.
       Since the quality problems of Forgingss include the appearance quality and internal quality problems, and there are likely to be interrelated between the various problems, the focus of the analysis should be comprehensive, taking into account the relationship between Forgingss and mechanical properties, Forgings defects Their own mutual influence.
Therefore, Forgings quality analysis work can be divided into field investigation stage, experimental analysis and analysis stage, put forward measures to solve and prevent countermeasures. Before implementing these stages of work, it is advisable to develop an implementation plan that includes the work to be carried out in these three phases. This embodiment may be supplemented and modified in the course of implementation. The implementation of the implementation of the program is to analyze the large complex Forgings and the use of pieces of quality problems an important part.
      In the field investigation phase, mainly to investigate the use of raw materials Forgings materials grade, chemical composition, material specifications, material assurance on the test results, into the plant re-test a variety of physical and chemical testing and process performance test results, and even check Raw material smelting and processing technology. At the same time should also investigate the Forgings process, including Forgingss should be used for the material, specifications, cutting technology, Forgings heating Forgings and final Forgings temperature, the use of Forgings equipment, heating equipment, heating process, Forgings operation, Forgings after the cooling method, the preparation of heat treatment process. If necessary, to investigate the situation of the operator and the environment and the implementation of the original process. For the follow-up process and the use of Forgings child problems should also investigate the follow-up process.
The purpose of the quality analysis of Forgings is to clarify the problem, identify the cause, take appropriate measures to create Forgingss that meet the technical standards to meet the requirements of product design and use, and develop practical countermeasures to prevent similar defects. Occurred, so that the quality of Forgings constantly improved.
       Since the Forgings is also subjected to heat treatment after Forgings, even the surface treatment process and the machining process, it is also put into use after the parts are made. Therefore, the quality analysis of the Forgings parts, in addition to the quality analysis of the forged Forgingss, After the heat treatment, surface treatment, cold processing and the use of the process found in the analysis of Forgings the quality of the problem. At this time, in the Forgings or has been made on the product, may also occur after Forgings the subsequent process improper process, the use of improper maintenance or improper design and selection caused by the quality of the problem, there are in addition to the Forgings process other factors , So in the semi-finished parts, finished parts, the use of pieces of quality analysis, only in the exclusion of the design, selection, heat treatment, surface treatment, cold work and maintenance of the use of factors, can accurately carry out the quality of the Forgings itself, So as to find out the causes of the quality problems of Forgings and put forward the improvement measures and prevent countermeasures.
In actual work, to determine the semi-finished parts, finished parts or Forgingss for the failure of what is the cause of what is not a very bismuth thing. It may be easier to analyze the failure of the semi-finished or finished parts, and the analysis of the failure or failure of the Forgings will take some trouble. In the analysis of these pieces of failure should first understand the experience of the use of fault and manufacturing experience, that is, to understand the design, selection of materials, cold process, hot arts situation, the situation, the use of maintenance, including environmental conditions, only After a comprehensive understanding of the above situation, and according to the dislocation of the macro, micro-topographic features, these features under what circumstances, whether to produce the characteristics of this morphological conditions, and through material analysis, mechanical properties Analysis, metallographic analysis, together with electron microscopy, electronic probe and some other advanced means, with all aspects of professional learning, communication, analysis, in accordance with the failure analysis procedures to produce fault pieces of the real causes of failure, and can Know whether the cause of the failure is Forgings quality problems.

Jingjiang Jinlun Machine Manufacturing Co.,Ltd