f. Welding on any portion of the draw rings must be approved by Project Manager. 在拉伸环的任何**部分进行烧焊必须获得项目经理的批准。 3. Composite die sections are not acceptable. 合成的模具入子是不可接受的。 O. Parallels: 垫脚 1. When required by the die design, the Vendor will furnish and mount ground parallels running from front to back, mounted with the capability for fork truck die handling. 当设计需要时,供应商可从前到后提供及安装圆形垫脚,安装时应考虑叉车搬运模具的能力。 a. Dies over 10,000 pounds use eight inch clearance between parallells. 当模具重量超过10000镑时垫脚之间的距离为8英寸 2. Parallels are required when blanks or scrap are discharged through the die shoe. 当下料或废料从模具上掉下时要求使用垫脚。 3. Parallels with mounting keys will be doweled with a minimum .5” diameter dowel. 带有安装健的垫脚应用销钉固定,销钉*小直径为.5”。 P. Dowels: 合销 1. Dowels must be press fit in die shoes and strippers, and push fit in die sections. 在摸座及脱料板上的合销必须为压配合,在摸板上的为推配合。 2. Dowels must be a press fit in all locating nests and stops. 在所有的定位装置及……合销必须为压配合。 3. All dowels must have accessible knockout holes without dismantling. 在没有分解的情况下所有的合销应有易卸的敲击孔 4. Use blind dowels only when impossible to drill through, if blind dowels are required, use removal pull type dowels. 仅仅当不能钻穿时才使用盲销,如要求使用盲销,使用带牙合销。 5. Dowels must not be used to withstand side thrust force (keys are to withstand this force and will be specified when quoting). 当承受侧力时不能使用合销(健用来承受这种压力,在报价时应说明)。 Q. Punches, buttons, and retainers: 冲头,嵌套及固定器 1. All punches and buttons are to be marked with: 所有的冲头及嵌套必须刻上: a. Manufacture name. 品名 b. Size. 尺寸 c. Su-dan job number. Su-dan 工作料号 d. This is needed so that they can be listed on the computer inventory system. 这些是有必须的,从而这些零件能被列在电脑目录系统上。 2. Ball lock punches are required with shedder pins and are to be.002” under maximum on standard tolerance unless otherwise specified by the company. 除非公司其它指定,要求使用带球锁的固定冲头,间隙为*大的标准公差.002” a. Use 7/8” long press fit buttons as standard if possible. 只要可能按照标准使用7/8”长的压配合嵌套 b. All shaped buttons are to be keyed. 所有形状的嵌套都应被键入。 c. Hardened backing plates are required on all punch retainers and where stamps are used. 在所有冲头的固定器后以及压印的地方都要求是用热处理的垫板。 d. Whenever possible all pilot holes require a press fit bushing. 只要可能,所有的引导孔都要求**个压配的导套。 3. Standard removable ball lock punches and buttons will be used, with heavy duty style ball lock. 应使用可移出的球锁冲头及冲孔嵌套,并配上重载荷的球锁。 4. Press fit buttons with other than centered round holes will use dowel locator for position or flat key. Dowel locators are preferred due to space requirements. 孔不在中心的压配合嵌套必须使用合销或扁平健固定其位置,因空间要求合销定位是**。 5.Retainers used to retain a group or cluster of punches is to be constructed as a single large retainer. The use of single punch retainers should only be utilized when a single punch is required, not when a number of punches reside close together. 集合式的冲头固定器应组装为**个单**的固定座。单个冲头的固定座仅仅使用在仅**个冲头的地方,不使用于很多冲头靠在**起的地方。 6. Punches and stamp retainers will be backed by hardened and ground tool steel plates ¼” minimum thickness. 在冲头及压印固定器后必须垫**块热处理及研磨的模板,模板厚度至少为¼”. 7.All Retainers used to locate trim punches and sections, punches and buttons must be hardened and ground. 所有的固定器**般用于定位剪切冲头及不见,冲头及嵌套必须被热处理及研磨。 8.Like punches will not have standard ball lock locations and shank diameters. 相似的冲头不能有同样的球锁座及柄部直径。 9.Blank and trim entry will occur before piercing punches by one-half stock thickness. 下料及剪边冲应比冲孔冲头高1.5倍料厚。 10.On compound dies, piercing amd blanking punches must be on the same plane to prevent material slippage. 在复合模具中,为阻止材料滑动冲孔及下料冲高度应相同。 11.All punches and trim steels must have slug ejectors. 所有的冲头及剪边冲必须有废料顶出器。 12.Die buttons must be mounted in hardened tool steel, A2, 4140, or 6150 RC 50/52。 嵌套必须固定在热处理的模具钢上面,材质为A2, 4140, or 6150 ,硬度为RC 50/52 14. All wire burned sections are to be mounted in hardened tool steel with hardened backing plate. 所有的线割入子必须安装在热处理的模板上并有热处理后的支撑板。
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