Shanghai Daoqin Plastics Co., Ltd.

由 USA Stratasys company launch FDM equipment is 由Scott Crump于1988 year most development fast speed molding technology. material polyester, ABS, 人造橡胶, 熔模铸造 use wax and poly thermoplastic property plastics and other. melt molding as principle is will hot property material （ABS, wax ） through add hot device 熔化, material formed filament 状, through filament machine 构送进 hot 熔喷头, in inner by add hot melt 化, 喷头沿 parts 截面轮廓 and filling 轨迹运动, meanwhile will semi flow 状态 材 material 按CAD delamination data control extrusion 并沉积 in 指定 位置凝 solid formed 形, and 周围 材 material adhesion, 层层堆积 molding. melt pressure formed process comparison combined use electrical appliances, office supplies and injection molding parts mold industry new product development, and used for false 肢, 医学, medical, large amount, and other 基于数字 formed technology 三维实体模 type manufacturing. technology 无需激 light system, price low 廉, 运行费 use very low can property high. currently in automotive, home appliances, power tools, medical, machine processing, precision 铸造, aerospace aviation, process product made as and toys and other industry, already in below/following several 方面起 to important function: 1) product 样本, design 评审, property can testing and assembly 实验. use according to fast speed manufacturing molding for design solution/scheme 进行评审, 进行模拟 property can testing and assembly experiment/testing, rear assessment production can can property, most rear will 改进信息 provide to design 人员, 以便以 rear and optimization. 2) will FDM technology and injection molding parts mold manufacturing technology combined in 一起, fast speed injection molding parts mold manufacturing technology can shrink short injection molding parts mold development cycle, improve/increase production efficiency. 3) in material field/area, according to to delamination data, manufacturing 出人体 local or device 官 模 type, can used for 临床医学辅助 diagnosis complex solution/scheme 确定, manufacturing understanding 剖学体 outer type （体 outer type ）; can manufacturing engineering fine 胞载体支架 structure （人体 device 官）, as is material manufacturing engineering in key/critical technology. 4) in micro type machine 械方面, using/adopting certain process processing methods, UV curable method methods, fast speed molding manufacturing technology can used for micro type machine manufacturing and assembly. 5) in other field/area, fast speed molding technology also can used for made material, made as process product design type, 展览模 type and other. FDM molding features: 1) standards engineering thermoplastic property plastics. 如ABS can use formed belt/tape has structure function type. 2) can use types material, can 选栅格 structure 充当填空. 3) add hot rear thermoplastic property plastics fine filament 像挤牙膏一样 from nozzle in extrusion. 4) thermoplastic property plastics to relatively low temperature degree as ring 境平面 rear speed cooling solid 化. 5) in recent years development speed, use 户青睐. FDM excellent, disadvantages and application scope: advantages: 1, manufacturing system can used for office ring 境, has gas or chemical material 质 危险. 2, process dry 净, simple, easy as generate waste. 3, can fast speed bottle or in parts. 4, Raw Materials 以卷轴 filament provide, easy 于搬运 and fast speed more 换. 5, Raw Materials use low, generally parts low 于20美元. 6, can selection multiple material, can color ABS and medical grade ABS, PC, PPSF and other. disadvantages: 1, degree versus for outer SLA process relatively low, most high degree 0.127mm. 2, speed degree relatively slow. suitable scope/range: this type of process methods combined product design concept 建模以 and product function testing. due to methacrylic acid ABS（MOBS）材 material tool has very good chemical stability property, can using/adopting 伽玛射线消毒, especially suitable for medical grade. formed degree versus for relatively low, combined made as structure separation complex parts. in product design assessment and 校审方面 FDM technology can will CAD design fast speed, 精确, also 经济 生 formed can material 理实体, ratio will 三维 几何造 type show/display 于二维 屏幕 or upper tool has more high property and property. design can more fast, more easy design in 错误. more important is, for formed product 而言, design can and 时体验 its new design product use property and quality. FDM生 formed type is design and non technology 部门交流 more good in material. suitable for printing 1) use light, simple, cost low: price is molding process is 否适于三维 printing important factors. more used for concept design printing machine for type degree and material chemical features requirements high, price is its can 否推广开 决定 property factors. 2) filament 材清洁, more easy: and other use powder and liquid material process versus ratio, filament more add 清洁, easy more 换, 保存, in equipment in or 附近形 formed powder or liquid 态污染. 3) rear simple: need separation to 一刻钟 time, 剥离支撑 rear type can use. in application relatively more SL, SLS, 3DP and other process in 清理残余 liquid and powder steps, and need rear solid 化处理, need outer equipment. this outer rear 处理工序一 is easy formed powder or liquid 体污染, is increase several small time, can in molding formed rear use. 4) molding speed degree fast: generally 讲, FDM process versus for/regarding SL, SLS, 3DP process speed degree is slow, 但, for printing application, its has advantages. 首先, SL, SLS, 3DP都 has process （铺 powder / liquid, 挂平）, it one-time molding more type is speed degree very fast, 例如: 3DP can to small molding 25mm left right high degree molding. printing machine molding small, one-time more molding 1至2 原 type, versus for 讲, speed degree advantages 就不堪 obvious. its 次, printing machine for type strong/high degree requirements high. therefore FDM process can through decrease small type 密实程 degree methods improve/increase molding speed degree. through 我们 实验, tool has certain structure features type, most high molding speed degree already to 60立方 cm / small 时, through soft parts optimization and technology 进步, expected can to 2000立方 cm / small high degree. fast speed plastics parts manufacturing material property can is FDM process main/primary advantages, its ABS原 type strong/high degree can to injection molding parts parts separation 之一. year also development 出PC, PC/ABS, PPSF and other material, strong/high degree already 经接近 or ultra- 普通 injection molding parts parts, can in certain 特定场 combined （试 use, repair, replace and other ） lower use. although metal parts molding （ in recent years many research machine and company in this research, is fast speed type field/area research hot 点） 材 material property can more good, in plastics parts field/area, FDM process is types non 常适宜 fast speed manufacturing methods. 随 材 material property can and process water 平 进一步 improve/increase, versus 信, has more more FDM原 type in various combined use. melt extrusion molding (FDM)-- high property can fast speed molding process 1)熔 melt extrusion molding (FDM) process material generally is thermoplastic property material, wax, ABS, PC, nylon and other, filament material. material in inner by add hot 熔化. 喷头沿 parts 截面轮廓 and filling 轨迹运动, meanwhile will 熔化 材 material extrusion, material speed solid 化, and 周围 材 material adhesion. 每一 层 sheet/slice is in upper upper 堆积而 formed, upper for currently to and function. high degree increase, sheet/slice 轮廓 面积 and 形状都会发生变化, 当形状发生 relatively large 变化时, upper 层轮廓就不 can to currently provide separation and function, this need design 一 辅助 structure －“支撑”, for rear provide and 支撑, ensure formed process achieve. 2) this type of process use light, use, simple, cost relatively low. use wax formed parts type, can used for wax 铸造. use ABS manufacturing type tool has relatively high strength in product design, testing and assessment and other to application. in recent years also development 出PC, PC/ABS, PPSF and other more high strength formed material, make process has can can manufacturing function property parts. due to this type of process tool has significantly advantages, process development is speed, currently FDM system in full already fast speed formed system in large is 30％.