Impact of intragranular substructure parameters on the forming limit diagrams of single-phase B.C.C. steels [PDF]
An advanced elastic-plastic self-consistent polycrystalline model, accounting for intragranular microstructure development and evolution, is coupled with a bifurcation-based localization criterion and applied to the numerical investigation of the impact ...
Farid Abed-Meraim +5 more
core +2 more sources
Simulation and Experimental Study on Roll-Forming Limit of Cup [PDF]
Roll forming can improve the material utilization rate and production efficiency of cups with a curved rotary profile, but there is no basis for the determination of forming limit. The DEFORM-3D software was used to simulate the roll forming of cups. The
Zeng Wei +5 more
core +2 more sources
ANFIS-based forming limit prediction of stainless steel 316 sheet metals [PDF]
Effect of microstructure on the formability of the stainless sheet metals is a major concern for engineers in sheet industries. In the case of austenitic steels, existence of strain-induced martensite ( $${\alpha }^{^{\prime}}$$ α ′ -martensite) in their
Mingxiang Zhang +2 more
doaj +2 more sources
Experimental study on influence of ultrasonic vibration on forming limit
Applying ultrasonic vibration in sheet metal forming can change its forming mechanism and improve its formability. The uniaxial tensile and bulging forming limit experimental setups were designed to study the ultrasonic vibration and forming limit ...
Zha Changli, Zha Shenlong
doaj +2 more sources
Forming limit indicators in metal forming [PDF]
Precise information on forming limit indicators is very important in designing the technological processes of metal forming. The significance of stress state and strain history for limit strains realization is emphasized above all. For the case of upsetting, indicators in the system of principle surface strains are specified, as well as classic example
Stefanovic, Milentije +5 more
openaire +2 more sources
Affecting the Determination of Forming Limit Diagram for Sheet Metals
The sheet metal forming is defined as the ability of metal to deform plastically (stretch forming) without necking or fracture. To control the sheets forming operation failure a diagram is used , in which the ; accepted forming , failure and critical ...
Walid Jalal Ali, Anas Obed Idres
doaj +2 more sources
Prediction of FLD using Abaqus and Gurson Model for Simple Flat Spacemen
In the past century, in many industries, such as, metal forming industry, it has been important to predict ductile damage and fracture of metals under complex loadings.
Tatiane Domokos +2 more
doaj +1 more source
The Establishment of Surface Roughness as Failure Criterion of Al–Li Alloy Stretch-Forming Process
Taking Al–Li–S4–T8 Al–Li alloy as the study object, based on the stretching and deforming characteristics of sheet metals, this paper proposes a new approach of critical orange peel state characterizations on the basis of the precise measurement of ...
Jing-Wen Feng, Li-Hua Zhan, Ying-Ge Yang
doaj +1 more source
Effect of crystallographic texture on the forming limit in microforming of brass
Microforming is an emerging technology to manufacture products in the light of miniaturization in several domains of industry. Plastic anisotropy is one of the material characteristics significantly affecting the micro forming process.
Mashalkar Anil, Nandedkar Vilas
doaj +1 more source
Single-Point Incremental Micro-Forming of Thin Shell Products Utilizing High Formability
This paper describes single-point incremental micro-forming of miniature shell products 50 µm to 1000 µm in size. First, the conditions of the micro-forming of a pyramid with a 1 mm square base were optimized to cause large elongation of a ...
Toshiyuki OBIKAWA +5 more
doaj +1 more source

