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介绍一种简易数控等离子切割装置的总体方案设和圆弧插补算法,所研制的简易数控等离子切割装置,大大简实现对板材以及小型零件的切割加工.计、机械机构及控制系统的设计研究,该设计实现了直线化了市场上数控等离子切割装置机械结构和控制系统,可 相似文献
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喻敏 《机械工人(热加工)》2011,(6):20-20
我公司在2003年启动城轨铝合金车体项目时,就先后引进了等离子切割机、高压水射流切割机及激光切割机等下料设备。这三种不同的下料方法各有优缺点,我们根据产品的需要,采用不同的设备来加工铝合金原材料。1.等离子切割等离子切割是一种以高温高速等离子弧为热源, 相似文献
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等离子切割是最近十年內研究成功的一种下料新工艺梢郧懈钛?乙炔焰所不能切割的材料,例如铜、鋁、不銹鋼等导热快和氧化物熔点高的金属材料以及难熔的非金属材料。我厂使用的等离子切割設备系上海电焊机厂制造的KL-1-1机动等离子切割机。这种切割机只能用于直綫切割,而不能进行圓弧切割。我厂生产的化工設备中,不銹鋼和鋁大都要进行圓弧下料。由于不能采用圓弧等离子切割,以前都是采用生产率低、成本高、劳动强度大的钻孔方法下料。鉴于生产上的迫切需要,我厂对KL-1-1型等离子切割机进行了改装,并 相似文献
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针对废旧防坦克地雷的回收处理,提出了一种新的机械拆分方法,通过对比分析选取了合适的切割方案与挤压方案,并设计了地雷切割与挤压装置,包括地雷顶升机构、夹持机构、地雷切割机构及对称布置的挤压机构。通过对地雷底壳进行切割与挤压,将地雷压盖与底壳分离。此装置结构简单、动作高效,可替代人工操作,实现自动化运行。 相似文献
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针对等离子切割烟尘较大的问题,设计了一种等离子坡口切割除尘系统.首先对工作台进行了结构优化,然后针对等离子坡口切割工况分析确定了除尘主机风量,最后利用仿真和实验验证了等离子坡口切割除尘系统设计的合理性,大大改善了等离子坡口切割工作站的工作环境,减轻了对现场工作人员的身体伤害. 相似文献
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张维官 《机械工人(热加工)》2014,(8)
正随着焊接科学技术的发展,切割下料作为焊接工艺的一道工序,高精度、高效率的切割装备不断涌现,从手工火焰切割到等离子切割,或数控火焰/等离子切割,再到精细等离子切割,激光切割,复合切割加工,智能化精密切割加工等,技术的进步推动了高精度切割装备的发展,影响精密切割装备板材下料精密 相似文献
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针对传统中小企业下料自动化程度低、设备占用率高等问题,提出三种自动下料方案,经过对比分析选择顶杆式上料机构作为最终方案,并进行主要结构的详细设计。 相似文献
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《中国制造业信息化》1978,(1)
等离子切割是一种先进的热切割方法,它具有能量集中温度高,切割速度快,效率高等一系列优点。可以切割一般氧——乙炔切割所不能切割的高熔点难熔金属,以至非金属,如不锈钢,铝和铝合金,铜和铜合金,以及钛、钨、镍等金属。在我厂,等离子切割主要用来切割不锈钢、铝和铝合金,也切割过一些黄铜、锂等其他金属材料。目前等离子切割已成为我厂板材下料和生产中所用的热切割方法中的一种主要工艺方法。现就我们对等离子切割设备、改装、使用、切割工艺参数的选择,以及使用过程中遇到 相似文献
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Bone sawing has been widely used in performing bone surgery. However, thermal necrosis, loss of cutting precision and surface damage may occur in cutting process. The primary objective of this research is to improve cutting performance of bone by advantages of diamond wire sawing. Mechanism of material removal, cutting force, temperature and surface quality are analyzed based on experimental results. It is indicated that wire sawing provides small depth of cut, which is effective to obtain ductile material removal mode. Due to small material removal rate per abrasive, thermal energy is low and most of the heat can be taken away by the cyclic wire and bone chips. Consequently, cutting force and temperature in cutting zone are lower than that of traditional sawing. Due to the high efficiency of chip ejection, burrs and fracture are reduced and a significant improvement in surface quality is achieved. Based on cutting experiments with various values of cutting parameters, it is observed that better performance is achievable at higher wire speeds. These results provide a valuable basis for application of wire sawing and understanding of bone cutting mechanisms. 相似文献
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In order to increase tool life and improve workpiece quality, cutting processes with geometrically defined cutters demand inserts with a prepared cutting edge. Chamfers are widely used in many processes, since they can provide edge strengthening without damaging the chip flow. In order to achieve a stable and reliable cutting process, uniform chamfer geometry along the insert and high edge quality are necessary. For this, proper grinding strategies for chamfer manufacturing must be taken into account. With the objective of getting knowledge about the chamfer manufacturing process, strategies for grinding of chamfers are investigated in this paper. Chamfers were ground on PCBN, mixed ceramic and cemented carbide cutting inserts with a vitrified bond diamond grinding wheel. A single grain chip thickness model is used to characterize the process and different grinding strategies are analyzed in terms of reduction of chamfer geometry deviation. It was found that high insert rotational speeds increase the edge chipping and that the cutting insert material has a considerable influence on the chamfer geometry deviation. 相似文献
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高速切削过程测温方法综述 总被引:3,自引:1,他引:3
切削温度与加工精度和刀具磨损密切相关,高速切削过程中切削温度随着材料,刀具,切削用量的选择不同而呈现出与普通切削过程不同的变化规律.本文归纳了高速切削当中切削温度的测定方法,并指出了各种方法的优缺点及适用性. 相似文献