At present, most domestic and foreign scholars mainly control the forming quality of HSS by means of variable holder force technology, thermal and hydraulicforming technology.
当今国内外大多数学者主要采用变压边力技术、热成形和液压成形技术来控制高强度钢板成形质量。
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Compact cracks in guide pieces caused by ordinary hydraulicforming press have been analyzed. Countermeasure to avoid cracks has been proposed for improving the qualification rate in mass production.
Hydraulic oils must be stable in the presence of oxygen otherwise you will find deposits forming in the oil that will affect the performance of your system's pumps and valves.