3D打印与创客 熔融沉积成形与设备 课件：4、FDM成形特点(中英）-美化.pptxVIP

主讲人：易 杰Speaker: Jie Yi FDM成型特点 FDM molding characteristics 课程导入 Course introduction FDM的成型特点是什么 What are the molding characteristics of FDM FDM的成型特点 FDM molding characteristics 电能加热塑料丝 Electric energy heating plastic wire 喷 头 Nozzle 熔融状态 Molten state 熔融的塑料丝喷涂到工作平台 Spray the molten plastic wire onto the working platform 计算机的控制下 Under the control of computer 能量传输和材料叠加 Energy transfer and material stacking 用激光为能源的光固化工艺 Light curing process using laser as energy source Three-dimensional printing process using droplet injection technology Different from 能源价格相对低，设备成本低，日常维护成本也较低 The price of energy is relatively low, the cost of equipment is low, and the cost of daily maintenance is also low 成型材料广泛，热塑性材料均可应用 The range of molding materials is wide, all thermoplastic materials can be used 环境友好，制件过程中无化学变化，不会产生颗粒状粉尘 Environmentally friendly, no chemical changes in the process of manufacturing and no particulate dust 设备体积小巧，易于搬运，适用于办公环境 The size of equipment is small and easy to carry, suitable for office environment FDM的成型特点 FDM molding characteristics 原材料利用率高 → 废旧材料可进行回收再加工 High utilization rate of raw materials → Waste materials can be recycled and reprocessed 喷头的运动是机械运动 → 速度有限制，成型时间较长 The movement of the nozzle is a mechanical movement → the speed is limited and the molding time is long 成型精度较低 → 表面有明显的台阶效应 Low molding accuracy → There is clear step effect on the surface 成型过程中需要加支撑结构 Support structure is needed during the molding process 手动剥除困难，影响制件表面质量 It is difficult to peel by hand, which affects the surface quality of parts FDM的成型特点 FDM molding characteristics 优 点 Advantages 去除支架结构简单易行 Easy to remove the bracket structure 快速构建复杂的内腔、中空零件以及一次成型的装配结构件 Quickly construction of complex internal cavity, hollow parts, and one-time molding assembly structural parts 用液化器代替了激光器 Replace the laser with liquefier 原材料的利用效率高且没有毒气或化学物质污染 High utilization efficiency of raw materials and no pollution by toxic gases or chemicals FDM的优缺点 Advantages and disadvantages of FDM 优 点 Advantages 各种色