全球最全面的材料性能数据库
Language
Language
Choose language

Tube Hydroforming: Part Two

摘要:

The hydroformed part takes on the shape of the die and finally the hydroformed part can be removed.
When used with high strength steels hydroforming is able to produce structurally superior parts with thinner sections at a reduced mass.

Tube Hydroforming is a well-accepted production technology in the automotive industry while sheet hydroforming is used in selected cases for prototyping and low volume production. Research in advanced methods (warm sheet and tube hydroforming, double blank sheet hydroforming, combination of hydroforming and mechanical sizing, use of multi-point and elastic blank holders) is expanding the capabilities of hydroforming technologies to produce parts from Al and Mg alloys, as well as Ultra High Strength Steels.

A simplified overview of the hydroform process:

Raw tube is loaded into hydroforming dies → Hydroforming press closes → The sealing rods engage the part, seal the ends and fill it with water → Pressure inside the part increases → The sealing rods push the tube into the die (endfeed) and the internal pressure is ramped to its maximum value.

The hydroformed part takes on the shape of the die and finally the hydroformed part can be removed.

Figure 1 shows the steps of the hydroforming process,.whilst Figure 2 shows the same tube after hydroforming.



Figure 1: The steps of the hydroforming process



Figure 2: The tubes after hydroforming process

This method provides the following unique benefits compared to conventional technology:

  • Higher precision of the part
  • Complex parts produced in one single tool
  • Increased possibilities for product design
  • Low weight due to reduced volume of material
  • Higher structural strength of the part
  • Less material thin-out
  • Fewer operations
  • Reduced mass
  • Reduced tooling costs
  • Part integration and reduced part costs
  • Integration of piercing and/or punching operations
  • Elimination of pinch weld flange
  • Improvements to dimensional repeatability

When used with high strength steels hydroforming is able to produce structurally superior parts with thinner sections at a reduced mass.

Date Published: Jan-2012

免费试用

搜索钢材指南知识库

输入搜索词：

搜索项

全文
关键字

标题
摘要

本文属于一系列文章。点击下面的链接，你可以看到有关这个话题的更多文章。

The Total Materia database contains many thousands of forging materials across a large range of countries and standards.

Where available, full property information can be viewed for materials including chemical composition, mechanical properties, physical properties, advanced property data and much more.

Using the Advanced Search page, it is possible to search for materials by their key descriptive words detailed in the standard title by using the Standard Description function of Advanced Search.

It maybe that you need to further narrow the search criteria by using the other fields in the Advanced Search page e.g. Country/Standard.

Then click Submit.

solution img

A list of materials will then be generated for you to choose from.

solution img

After clicking a material from the resulting list, a list of subgroups derived from standard specifications appears.

From here it is possible to view specific property data for the selected material and also to view similar and equivalent materials in our powerful cross reference tables.

solution img

For example, by clicking on the mechanical properties link on the subgroup page it is possible to view mechanical properties data for the material including yield stress, tensile stress, elongation and impact data.

solution img

For you’re a chance to take a test drive of the Total Materia database, we invite you to join a community of over 150,000 registered users through the Total Materia Free Demo.