the optimization of drawing technique was researched, and the influence of different blank holder force and minimum die fillet radius on stamping forming was studied as well.
die structure based on the process of forming small fillet radius is introduced, and deduced the formula according to the principle of volume invariably.
介绍形成小圆角半径的圆孔翻边模具的结构特点,按体积不变的原则,推导了计算公式。
avoid the quick changes of casting structure, use fillet radius on internal angle when possible, which is no less than r0.3.
铸件结构应避免急剧变化,尽可能避免尖角,圆角应达到r0.3以上。
fillet radius should be 40-60% of the rib thickness.