Servo Press Scientist
Conociendo las fuerzas en la prensa
En las operaciones de estampado la prensa debe superar la resistencia de un material a la deformación y otras fuerzas que se oponen al movimiento de la prensa. Las fuerzas o el tonelaje que una prensa puede soportar y aplicar deben ser mayores a las requeridas por el proceso de formado. Para dimensionar correctamente una prensa, los operadores deben comprender estos conceptos diferentes pero relacionados.
-
- From The Fabricator
Understanding press tonnage
In stamping operations, the press must overcome a material’s resistance to deformation and other forces opposing the press motion. The forces, or tonnage that a press can withstand and apply should be higher than those required by the forming process. To size a press properly, stampers should understand these different but related concepts.
-
- From The Fabricator
R&D Update: Predicting off-center loading in sheet metal forming operations, Part II
Researchers at the Center for Precision Forming share their methodology for predicting off-center loading in a transfer die set.
-
- From The Fabricator
R&D Update: Off-center loading in sheet metal forming operations, Part I
Off-center loading can cause increased press and die wear and maintenance, leading to decreased part quality and more downtime, so predicting it is key.
-
- From The Fabricator
R&D Update: Fundamentals and applications of deep drawing, Part II
Finite element (FE) simulations can be used to predict the occurrence of fracture or wrinkles in a given deep drawing.
-
- From The Fabricator
R&D Update: Fundamentals and applications of deep drawing, Part I
The researchers at CPF explore the effect of draw beads and spacers in deep drawing and explain why they aren’t used in progressive die drawing.
-
- From The Fabricator
R&D Update: Exploring the benefits of servo technology in the pressroom
CPF researchers employed methods such as variable BHF, cushion pulsation, and attach/detach on a servo press to improve material drawability, reduce springback, and maintain edge quality during blanking.
-
- From The Fabricator
R&D Update: Using double bending tests to estimate edge fracture occurrence
Researchers at the Center for Precision Forming share the results of FE simulations to determine an adequate sample size and tooling configuration for the double bend test, used to estimate edge fracture in metal forming.
-
- From The Fabricator
R&D Update: Industry 4.0 and the use of sensors in sheet metal forming
Data mining with sensors can help sheet metal stampers form defect-free parts.
-
- From The Fabricator
R&D Update: Edge fracture in hole extrusion and flanging, Part II
Editor’s Note: Part I appeared in the July/August 2018 issue and discussed the effect of process variables in blanking (piercing).
-
- From The Fabricator
R&D Update: Edge fracture in hole extrusion and flanging, Part I
Researchers at The Ohio State University explore how material, punch/die clearance, and tool wear affect edge fracture during hole extrusion and flanging.
-
- From The Fabricator
R&D Update: Blanking and edge fracture in flanging of AHSS, Part II
Editor’s Note: Part I of this article, which appeared in the November/December 2017 issue of STAMPING Journal®, reviewed the methods most commonly used to evaluate edge fracture in various materials.Edge fracture can be minimized by following certain steps. Following are the most important...
-
- From The Fabricator
R&D Update: Blanking and edge fracture in flanging of AHSS, Part I
The researchers at The Ohio State University's Center for Precision Forming discuss the factors that affect edge quality and explore several methods for testing the effect of blank material and blanking conditions on edge fracture.
-
- From The Fabricator
R&D Update: Reducing springback in U- and hat-bending of AHSS
Advanced high-strength steels (AHSS) are used widely in the automotive industry to reduce body weight and increase crash resistance. Precision and reduction of springback are challenging when forming these alloys, so the industry is continuously developing new techniques to compensate for...
-
- From The Fabricator
R&D Update: The effects of servo press motion and servo cushions on stamping results
New materials require new manufacturing methods. Deep drawing of advanced high-strength steel (AHSS) and certain aluminum alloys (such as 6XXX) requires flexible forming operations. Therefore, the use of servo presses and servo hydraulic cushions continues to increase. Servo presses are used mainly...
- Podcasting
In this episode of The Fabricator Podcast, Caleb Chamberlain, co-founder and CEO of OSH Cut, discusses his company’s...
