In this research, surface axial stress and propagation of surface transverse cracks on large ingots during hot forging process was studied using finite element modeling. The simulation results show that surface axial stress changes from compressive to tensile during the upsetting process. Large ingots which need to be upset and stretched several times are easy to form cracks at anvil overlapping part during stretching process. These surface transverse cracks are crack source and may rapidly propagate under surface axial tensile stress during the upsetting process. The effect of material, temperature, height-diameter ratio of billet, deformation speed, and friction coefficient between anvil and billet on the changing of surface axial stress ...
This work develops a process that solves the problem of the formation of cracks inside forged gas fi...
This paper focuses on the hot forging of multi-material cladded work pieces using upsetting tests. T...
This paper presents a model for calculating deformations and mechanical stresses around a crack norm...
In this research, surface axial stress and propagation of surface transverse cracks on large ingots ...
AbstractThis paper focuses on a technique for predicting surface cracks in hot free forging. These s...
We propose a forging method for forgings, which implies the upsetting of workpieces with concave fac...
In the process of the stretching of the shaft forgings, if the process parameters are not properly s...
In recent years, superheavy forgings that are manufactured from 600 t grade ingots have been applied...
AbstractHollow parts are demanded to reduce the weight of automotive body, and it is required to dev...
Surface cracking seriously affects the quality of beam blanks, a relatively new blank in the continu...
Surface cracking seriously affects the quality of beam blanks, a relatively new blank in the continu...
Hot-forging is a process commonly used in the manufacturing of automobile parts such as connecting r...
This study explores the multi-stage cold forming die of a welding valve fastener using simulation so...
P91 is a new kind of heat-resistant and high-tensile steel. It can be extruded after ingot casting a...
In this study, cracks formed in the edge side of Bi-S-based free-machining steel billets during hot ...
This work develops a process that solves the problem of the formation of cracks inside forged gas fi...
This paper focuses on the hot forging of multi-material cladded work pieces using upsetting tests. T...
This paper presents a model for calculating deformations and mechanical stresses around a crack norm...
In this research, surface axial stress and propagation of surface transverse cracks on large ingots ...
AbstractThis paper focuses on a technique for predicting surface cracks in hot free forging. These s...
We propose a forging method for forgings, which implies the upsetting of workpieces with concave fac...
In the process of the stretching of the shaft forgings, if the process parameters are not properly s...
In recent years, superheavy forgings that are manufactured from 600 t grade ingots have been applied...
AbstractHollow parts are demanded to reduce the weight of automotive body, and it is required to dev...
Surface cracking seriously affects the quality of beam blanks, a relatively new blank in the continu...
Surface cracking seriously affects the quality of beam blanks, a relatively new blank in the continu...
Hot-forging is a process commonly used in the manufacturing of automobile parts such as connecting r...
This study explores the multi-stage cold forming die of a welding valve fastener using simulation so...
P91 is a new kind of heat-resistant and high-tensile steel. It can be extruded after ingot casting a...
In this study, cracks formed in the edge side of Bi-S-based free-machining steel billets during hot ...
This work develops a process that solves the problem of the formation of cracks inside forged gas fi...
This paper focuses on the hot forging of multi-material cladded work pieces using upsetting tests. T...
This paper presents a model for calculating deformations and mechanical stresses around a crack norm...