1. The presence of deformed steel carbide segregation and accumulation: Select the appropriate forging process. 2. Large-scale die selected low hardenability of steel: the correct selection of the appropriate forging steel. 3. Surface decarbonization or machine is not cleared when the machined surface decarburization: Note heating protection multiaxial head, bath deoxygenation. The five-axis head quenching temperature is too high, the heating time is less than: strict control quenching process. 5. alkali bath water is too small: strict control of alkali bath water. 6. In the coolant residence time of less than: increased residence time. 7. tempering temperature: Select the appropriate tempering temperature. Processing and calculation methods and general configuration of the analysis on the contact boundary compared to simulate forging process is characterized by the contact borders of the workpiece and the die is time varying. This processing and calculations related to the contact boundary friction mechanism, several aspects of contact with the judge out of the search methods and criteria, method to calculate the contact force methods. Axis head, Super League forging (certified), Linyi shaft head by Luoyang Super League Forging Limited. Luoyang Super League Forging Co., Ltd. (www.lysmzg.com) (www.lysmzg.cn) is Luoyang, forgings leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Forged in the Super League leaders with the staff warmly welcome all inquiries negotiations to create Super League forging a better future. You can also access (www.lysmzg.cn/supply_details_46322815.html), for more information about the company.