Line Ⅴ combines a feeding metal frame, leveler grooving roll, hydraulic notch and punch square machine, hydraulic shear, movable pittsburgh lock machine, duplex trans-verse flange manufacturing machine, TDF hydraulic folder and CNC system.
力丰全自动风管生产Ⅴ线是由上料架，调平压筋机，冲尖口和冲方口油压机，液压剪板机，位移式联合角咬口机，双机联动式自成法兰机，TDF液压折边机和全自动电脑控制系统组成。
Then these results are obtained, which include that it is more reasonable to employ the punch with the convex flange than the flat bottom punch for upsetting-extrusion of outer race and it is feasible to use half closed backward extrusion for backward extrusion of outer race.
本文针对目前科研和生产中急需解决的关键技术，采用数值模拟和实验研究相结合的方法，对钟形罩塑性成形过程进行了大量的研究，包括钟形罩预成形工艺有限元模拟、冷缩径回弹分析与模具运动分析和实验研究三部分。
In addition, the blank holding force that is required to avoid wrinkle and rupture during conical part deep drawing is researched. The necessity of reasonable blank holding force in pressing is expounded. From the view of mechanical analysis, the wrinkle critical condition of side-wall is derived for the first time by the stress state of side-wall, the main deformation region on blank. According to the critical condition of plastic instability for flange, side--wall, corner of punch on blank, The blank holding force in conical part deep drawing is divided into four different regions within its forming figure. The basic principle of reasonable blank holding force during stamping is summarized and provided. The mathematical model of reasonable blank holding force that avoids the wrinkle and rupture is established and verified by the finite element numerical simulation and the grid experiment method. The result shows that it is accurate and reliable.
此外，本文还研究了圆锥形件拉深成形过程中，随着拉深变形过程的进行，毛坯为避免产生起皱、破坏缺陷而对压边力的需求情况，阐明了圆锥形件拉深成形过程中压边力合理变化的必要性；由毛坯主要变形区悬空锥壁部分的受力变形情况，从力学分析的角度，首次推导得出了圆锥形零件悬空锥壁起皱失稳的临界条件；并根据主要变形区法兰、悬空锥壁及凸模圆角部分的塑性失稳临界条件，在其成形范围图中，将圆锥形件成形过程中的压边力划分为四个区域；总结并提出了圆锥形件成形过程中压边力合理变化的基本原则；建立了防止起皱、破坏缺陷产生的压边力合理变化的数学模式，并得到了有限元数值模拟及网格实验法的验证，证实了理论分析结果的正确性和可靠性。
Kang Mei wind air-conditioning plant area of 20000 O factory with OK series of high-speed punching machine, vertical pipe up, pipe up horizontal, brass than the straight machine, bending machine, such as more advanced production equipment, air-conditioning heat exchangers; has 100 tons of hydraulic machines, 200 tons hydraulic machine, 10-80 tons of punch, Flanging Machine, Shearing Machine, CNC punching, plasma cutting machine, such as sheet metal processing equipment; has lathes, milling machines, slotting machine, planer, such as mechanical processing equipment; TFD open computer automation material production line, TFD Zicheng duct flange molding machine, COMIFO round duct molding machine, COMIFO Oval Duct Duct molding machine, such as processing equipment; has sheeting molding machine, sheet laminating machine, electric machine, Vibration drainage equipment, etc., there is wire anemometer, noise, the leakage current measuring instrument, puncture test bench, test equipment, such as dynamic balancing machine and some auxiliary equipment.
康美风空调厂厂房面积达20000㎡，拥有OK系列高速冲床、立式涨管机、卧式涨管机、铜管较直机、弯管机等比较先进的空调换热器生产设备；有100吨油压机、200吨油压机、10-80吨冲床、折边机、剪板机、数控冲床、等离子切割机等板金加工设备；有车床、铣床、插床、刨床等机械加工设备；TFD电脑自动化开料生产线、TFD自成法兰风管成型机、COMIFO圆风管成型机、COMIFO椭圆风管成型机等风管加工设备；有护板成型机、卷板覆膜机、电热丝切边机、振动排水机等配套设备，有风速仪、噪声计、漏电测量仪、击穿试验台、动平衡机等检测设备及一批辅助设备。
Increasing punch shape parameter r_c/w results in the decrease of the velocity of material of flange short side and corner flowing into die edge, thus enhancing the forming machining degree of corner. It's one of the reasons that the forming limit is decreased.
增大凸模形状参数rc/w，成形中法兰短边和曲边材料向凹模口的流入速度减小，曲边变形加工度增大，是使成形极限降低的原因之一。
Numerous researches have demonstrated that an appropriate variable blank holder force (VBHF) during punch stroke is an effective technique to suppress the wrinkling for both flange and sidewall and delay the onset of tearing.
前人大量的研究表明，在拉伸成形的不同行程施加合适的变压边力（VBHF），可有效避免板料成形中起皱和破裂的缺陷。
To low drawing in flange part, the blank holder can be used as punch, and the effect is good.
对于凸缘部位的浅拉深，采用压边圈兼作浅拉深凸模的作用，取得较好的效果。
Increasing punch shape parameter r_c / w results in the decrease of the velocity of material of flange short side and corner flowing into die edge, thus enhancing the forming machining degree of corner. It's one of the reasons that the forming limit is decreased.
增大凸模形状参数rc/w，成形中法兰短边和曲边材料向凹模口的流入速度减小，曲边变形加工度增大，是使成形极限降低的原因之一。