Sheet metal forming

JSTAMP

Sheet metal forming

JSTAMP

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JSTAMP Functions

JSTAMP represents the Sheet metal forming process virtually by numerical simulation. Users can examine the simulation result, output it to CAD, and directly use the CAD as a countermeasure by using JSTAMP.

Designers can avoid the challenges of trial and error. JSTAMP provides an adequate result and reduces the lead time and cost of tool design.

JSTAMP provides comprehensive support throughout the design process from the first trial to the final stage. The feature for addressing complicated process stages, low formability materials, and latest technologies covers various tasks in the Sheet metal forming process.

Feature Highlights

Various stamping process phenomena can be simulated
Supports high-precision simulation such as the Yoshida-Kamimori model
Implementation features that are useful to customers

Improve QCD (Quality, Cost, Delivery)

Simple forming evaluations, blank, and trimmed inflation can be performed at the component designing stage.

Blank line development

JSTAMP estimates blank line development based on product geometry within several tens of seconds. Given a product geometry, quick and convenient calculations improve the yield potential of press products. Accuracy can be further improved after detailed simulation by comparing the error with the product by using the auto prediction feature.

Blank line development

This feature maps the product geometry on the tool surface. JSTAMP predicts the trim line based on the product and the tool geometries within several minutes. Accuracy can be further improved after a detailed simulation by comparing the error with the product by using the auto prediction feature.

Realistic reproduction of forming process and its evaluation

Stamping tool provides a high degree of reproduction of forming conditions such as wrinkle high-strength steel and springback high-precision simulation and ironing, during ironing and burring, which are prominent during wrinkle forming.

Accurate evaluation of crack and wrinkle

Leading-edge FEM technologies describe crack and wrinkle accurateluy.

Parallel processing can deal with several tens of thousands of meshes, which are needed for accurate simulation.

Precise springback analysis

JSTAMP includes a precise springback simulation module with "Yoshida-Uemori model" and "Yoshida's 6th-order yield function". JSTAMP simulation can consider the Bauschinger effect, the SD effect, rate sensitivity and plastic strain dependency of the unloading Young's modulus so that JSTAMP can deal with high-strength steel and alminum alloys.

Geometry evaluation of springback

Users can use precise geometries computed with various methods for geometry evaluation. JSTAMP measures and evaluates 3-dimension springback amount uniformly, regardless of the constraint conditions. It also has a range of positioning features (best-fit, three-point constraint, and triaxial constraint) and measurement features (cross-section angel, circular radius, and shape deviation).

Ironingdeep drawing simulation

By using solid elements in the forming simulation, JSTAMP allows users to evaluate deformations during ironing, oining, burring, bending thick sheet, and ultraprecision Sheet metal forming, which shell elements cannot deal with

Material database

JSTAMP includes a material database that covers more than 100 types of materials such as steels (hightensile materials), SUS, and aluminum alloy materials as standard. Users can start a simulation straightaway. The user-defined material database can be added. The data of the Yoshida-Uemori material model for precise springback simulation is available as a paid tool.

Virtual evaluation of countermeasures

JSTAMP not only reproduces the phenomena in stamping tool with high precision, but also provides a countermeasure function for designing dies.

CAD output of SB-compensated tool

Simulated compensated tool can be output to CAD. The output to CAD is used directly in CAM to pass the evaluated result to the following process.

Expansion of tool radius and CAD output

Users can modify the fillet R parametrically without going back to the CAD data. JSTAMP provides the opportunity to visualize cracks and shocklines quickly and easily. The modified idea can be output into the IGES format, which can be mapped to the original CAD data.

Manufacturing trends

We are enhancing our response to the latest trends in stamping tool domain, which is advancing every day.

Hot stamping

Hot stamping is a forming method that has less springback: preheat a sheet material up to austenite temperature first, then perform hot forming, and follow it with tempering and rapid cooling to obtain a high-strength sheet panel. JSTAMP can consider the temperature dependency of a material and the heat transferred to the tool by using thermal - structural interaction analysis.

Overview of Servo Press Analysis Functions

JSTAMP has a feature to deal with flexible servo press motions. A new feature to describe dynamics during servo pressing with irregular sliding motion (e.g., a formability improvement due to the relubrication effect) with CAE is under development.

Tube hydroforming

Tube hydroforming is a forming method in which a straight tube is bent ("bending") and preformed before it is processed by applying internal hydraulic pressure to the tube and simultaneously pressing both ends of the tube along the axial direction. JSTAMP has a self-developed simulation solver to facilitate fast computation of the bending process without any tool data.

Better operability and better work efficiency

JSTAMP provides support for efficient simulation configuration tasks.

Multi-stage simulation

User-friendly interface navigates the multi-staged forming process simulation.

User-friendly execution control

JSTAMP is flexible in terms of the computer platform on which to run a simulation. Users can operate JSTAMP on their own PC and run a simulation on the machine they choose?from a PC to clustered massively parallel Linux computers. Consecutive multiple-stage simulations can be run automatically.

Various tool actions

Users can setup complicated tool motions such as pad pressure and bottoming or cam motion easily and correctly.