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液压成型模拟和高压试验系统 

在汽车和航空制造技术飞速发展的今天,复杂的整体及部件构形除了要求高强度、高韧性、质量轻的金属材料以外,更期冀先进的成型工艺,使工程师的设计成为现实;先进的发动机技术也有赖于压力管路及喷油系统能够持续不断的在高压下稳定可靠的工作。用尖端的数字化电液伺服控制技术,为提高工业品质量、为改善人们的生活素质作出了卓越贡献。


    液压成型模拟和高压试验系统在高精度、全数字闭环控制电液伺服液压控制领域.它向科研、产品开发、生产制造、质量控制等领域提供了高科技的产品及技术服务。它的产品包括,液压成型模拟系统及各种附件、高压泄漏试验系统、液压胀形模拟系统及软件建模、液压胀形生产系统及模具开发、热气成型系统、伺服控制精密液压冲压系统等。

      液压成型模拟和高压试验系统的用户遍及众多行业,包括:钢铁、金属加工、金属制品、汽车、航空航天及各高等院校和相关科研机构。它的领先技术提供了更准确、可靠的试验数据,使研究者缩短了研发进程,协助用户生产出高性价比、高质量的产品使工厂生产出了高质量的产品。
液压成型模拟和高压试验系统Interlaken Hot Stamping Press Systems are ideal for producing light-weight, high strength parts with precise dimensional accuracy.
The hot stamping process involves heating a blank or a preformed part in a furnace to approximately 950 C. To avoid significant heat loss, the heated blank is then quicly transferred into the Interlaken press for forming. A controlled press hardening or “quenching” process is then performed. The Interlaken hot stamping press allows manufacturers to produce high strenght, complex shapes and geometries in materials without material springback. With an Interlaken hot stamping press, manufacturers will have the confidence and quality assurance to produce stronger, lighter, higher accuracy parts at volume for a reasonable price.

 




The Hot Stamping Process





The entire hot stamping process.....from a sheet blank to finished product.

Step 1.  Boron coated steel blanks or preformed parts are fed into a furnace on a conveyor belt.
Step 2.  The steel blanks or preforms are evenly heated in the furnace to austenitic temperature, 950 degrees C (1,700 degrees F).
Step 3.  One hot steel blank or preform is removed by a robotic arm to be quickly positioned into the die for forming.
Step 4.  The part is formed by the hydraulic press at a precise forming pressure.
Step 5.  A uniform quenching or hardening cooling process takes place while the hydraulic press dwells for a few seconds. Because the part is rapidly cooled in the die while the press is dwelling, springback is minimal.
Step 6.  The finished part is removed by an unloading robot for part cleaning, secondary operations, or quality control.









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一、板材液压成型

  板材液压成型是在母模(液压室)中充以一定压力的液体,致使公模(冲头)在压下时,使得母模中的液体产生一个对向压力使得胚料紧贴在公模上,从而提高工件的精度,并提升效率,以减少传统板材制作时所产生的缺陷。一般常见的是将液压室置于下方,然后,利用冲头与液压室内压力成形。

  板材液压成形技术在某些特别产品应用上占有一席之地,其主要的优势在于仅需制作单一母模,而且利用液体压力为基础,因而能保有板片表面之光滑度,减少皱摺产生;另外,难成型性的材料如高强度钢、铝合金、镁合金、钛合金等,均可利用压力的控制达到成型的目的;尤其是在下列特性要求之制品中:1.快速板材成形开发;2.制品表面品质要求高;3.多种少量之制品;4.原型件之开发之试作;5.低成本模具制造。

  就产品应用而立,汽车、航太、家电、轨道车、3C、民生等产业均有量产之相关生产线,产品包括引擎盖、副支架、车门板、相机外壳、灯罩外壳、卫星行线等。

  板材液压成型设备,主要构成单元为油机本体,以及油机元件与电控系统等,其中,与一般之油压机不同处在于设备台面上置入液压完,对于成形过程之液压室压力控制就变得很重要,现代化的设备系统采用比例或伺服控制,可作数值化参数输入,与数值化或图形介面之显示监控.
Leak Testing & Pressure SystemsInterlaken offers turn-key Leak Testing Equipment for R&D and production. Combining their expertise in ultra-high pressure, controls, data acquisition and high-force hydraulics, Interlaken’s integrated package offers performance, reliability and ease of use for leak detection systems.

Production Leak Testing Systems

Interlaken also offers a new line of modular leak test systems. These leak tester systems can be integrated into production lines and work cells or can be used stand alone. There are many leak testing sensor technologies available such as pressure decay, vacuum decay and mass flow. Interlaken integrates the appropriate sensor technology into a customer’s existing production lines and can incorporate such capabilities as data collection and analysis, part marking and material handling. Interlaken’s control module can communicate with other shop floor control systems via Ethernet, ProfiBus or CanBus.

Interlaken’s Production Leak Testing Systems can be used to test high pressure components at their operational pressures (pressures upto 100,000 psi). This will allow companies to find leaks on high pressure components in-house during QC/QA that were not previously discovered with testing done at less than operational pressures.

Testing reports provided by the Interlaken Leak Test Systems include testing measurement data, graphs and statistics for leak quality control/quality assurance monitoring.

The leak testing system can be configured with custom, quick-change fixtures for high-volume production or with more universal configurations for research and development work.

Check out a video animation of an Interlaken Leak Testing System
(System is designed around customer's component leak testing requirements)


High Bandwidth Leak Testing Video | Low Bandwidth Leak Testing Video

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二、电磁成形

  电磁成形(EMF, Electromagnetic Forming)技术于工业上之应用至今已超过30年,过去主要用于轴对称管件的压缩/扩张成形与异质材料之结合。近年来有愈来愈多之研发单位,投入电磁成形技术应用于金属板材的研究。

  电磁脉冲原理(Magnetic Pulse Principle),电磁脉冲制程系利用一瞬间高脉冲电流通过工作线圈,而产生一均匀的强大脉冲磁场,因感应磁场之作用,使其工件亦产生一与线圈相斥之磁场,当所产生之强大脉冲磁力,超过工件本身所能承受之降伏强度时,而使工件产生永久变形。因此,便可应用于具导电性材料之管件焊接、结合与板材成形等制程。

  电磁脉冲能产生近均压(Quasi-hydrostatic)之成形力,对于防止制品皱折产生及回弹问题的改善有极大的帮助;而电磁成形在10usec~100usec间即完成,使得材料本身产生超塑性(Hyperplasticity)的现象,大幅提升材料的延展性,此外其非接触式之成形方式,减少甚至不需使用润滑油。

  产品应用方面,各种同质或异质之管材焊接或管材之缩管、扩管之变形,为目最为普遍之应用;而板材成形应用方面,汽车板件以及3C产品如手机、MP3及数位相机等之精致表面壳件的制造为具有潜力之研发。

  电磁脉冲系统,运作时于系统通入一交流电,经变压器及整流器后转变为高压直流电,并使其系统之电容器充电,而当电容器储能达到设定值后,导通高电流开关并进行放电,使其高脉冲电流于通过工作线圈时瞬间释放,因而产生一强大的脉冲磁力,对于却进行该制程之工作物产生材料之永久变形,目前此种设备系统主要为国外进口,国产化之设备则尚处于研发阶段。

电磁脉冲系统之主要单元构成如下:
 1.高电压箱、高电压变压器、点火系统、控制回路;
 2.储能电容;
 3.操作面板;
 4.工作台(Work station)、线圈(Coil)、高压电缆线。
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