The Deformation Analysis And Die Quenching Process Of Bevel Gear

Heat treatment is a very important basic technology of mechanical parts processing, plays an important role in improving the performance of the parts,prolong the service life and enhance the market competitiveness of products.Quenching occupies an extremely important position in the heat treatment. Important mechanical parts, generally are subject to quenching, and quenched parts usually only micro machining process can meet the use requirements. However, the parts to be subjected to severe quench cooling process causes deformation of parts easily, even on the subsequent use of mechanical processing will adversely affect,therefore, it is very important to study the quenching process.In this paper, a bevel gear quenching press as the research object, Starting from the general deformation of simple parts quenching, using ANSYS software to simulate quenching temperature field, stress field and deformation trends of the bevel gear, the impact of the interaction between each deformation hardening and hardening process for all relevant factors conducted a systematic analysis, discussion and research.Based on the analysis of bevel gear quenching, using ANSYS software to simulate the bevel gear emerald fire cooling temperature field, stress field and deformation trends, the following conclusions:1. Computer simulation can accurately simulate the trend bevel gear quenching process temperature, and residual stress distribution and the distribution of deformation;2. When the flow rate of the quenching medium bevel gear take0.6m/s can avoid the "nose" to achieve quenching, while its temperature is changed slowly, a relatively more uniform temperature distribution, but keep the flow constant in the entire process, it would have more of its components a large amount of deformation, the maximum deformation of the simulation1.5mm;3. Segmented using variable flow cooling, can effectively reduce the deformation hardening. Under simulated conditions, the first stage of the flow500L/min, which lasted20s; second phase flow400L/min, which lasted60s; third phase flow650L/min, which lasted100s, compared with a constant flow of cooling can reduce the maximum deformation50%, compared with the current quenching process can be reduced by12.8%.