Heattreatmentdeformationfactors.doc

Heat treatment deformation factors Abstract: Industrial development change rapidly, the mechanical precision and performance requirements are also getting higher and higher. In the industrial production of parts, heat treatment is an essential part, its effects on the properties of very large, metal heat treatment to improve the properties of various materials at the same time, the heat treatment distortion is inevitable, and will directly affect the precision of the workpiece, intensity, noise and life, so for high precision parts as far as possible to reduce the amount of deformation, focuses on the analysis of temperature is controlled by the deformation of the key factors and listed some secondary factors. Key words: Heat treatment deformation of metal heat treatment deformation factors of temperature. One, foreword What is a metal heat treatment of materials? Heat treatment hurt? ( deformation ). Metal materials heat treatment is the solid metal or alloy, suitable for heating, thermal insulation and cooling, sometimes with to chemical and mechanical action, so that the metal alloy internal organization and the structure is changed, thereby obtaining the improved material properties of the process. Heat treatment process is to make all kinds of metal materials have good performance of an important means. Many of the practical application of reasonable selection of materials and a variety of metal workpiece forming process can not meet the required mechanical properties, physical properties and chemical properties, the heat treatment process is essential. But the heat treatment process in addition to having a positive effect, in the process will inevitably produce more or less deformation, which in turn is mechanical processing must be avoided, both between it is coexistence and the need to avoid the relationship, only the corresponding method to the deformation control in the smaller range. In order to reduce heat treatment distortion, we need to understand the