CN101885063A - Laser cladding forming device and laser cladding forming method of metal part - Google Patents

Laser cladding forming device and laser cladding forming method of metal part Download PDF

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CN101885063A
CN101885063A CN 201010248416 CN201010248416A CN101885063A CN 101885063 A CN101885063 A CN 101885063A CN 201010248416 CN201010248416 CN 201010248416 CN 201010248416 A CN201010248416 A CN 201010248416A CN 101885063 A CN101885063 A CN 101885063A
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laser
wire
forming
multi
table
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CN101885063B (en )
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四库
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东莞理工学院
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Abstract

The invention relates to a laser cladding forming device and a laser cladding forming method of a metal part. The device comprises a work bench in three-dimensional motion, a laser device, a wire feed device and a control system, wherein the wire feed device comprises a pinch roll wheel set, and the drive wheel of the pinch roll wheel set is connected with a stepping motor; the control system comprises a multi-shaft motion control card, and the multi-shaft motion control card is connected with the stepping motor, a work bench driving motor and the laser device respectively. The method comprises the steps of modeling, instruction conversion, sheet forming and deposition forming and the like. Metal wires are molten by laser to form molten drops, the molten drops are piled up and cooled on the work bench, sheets are formed along with the motion of the work bench, and all sheets are deposited layer by layer to form the three-dimensional metal part. The invention has low manufacturing cost, high forming efficiency, high part structure strength, high surface quality and wide application range.

Description

激光熔覆成型设备及一种金属零件的激光熔覆成型方法 And laser cladding apparatus forming part of a metal laser cladding method for forming

技术领域 FIELD

[0001] 本发明涉及金属零件成型加工技术领域,特别涉及激光熔覆成型设备及一种金属零件的激光熔覆成型方法。 [0001] The present invention relates to metal components forming technology, and particularly relates to a molding method of laser cladding and laser cladding apparatus forming metal parts.

背景技术 Background technique

[0002] 传统的金属零件成型方法包括数控机床切削加工、铸造、注塑等。 [0002] The conventional method of forming a metal part comprising CNC machine cutting, casting, injection molding and the like. 数控机床是普遍使用的加工制造设备。 CNC machine tool manufacturing equipment is commonly used. 但是,数控机床难以制造具有复杂表面或结构的零件,如薄壁结构、 封闭内腔结构和共行冷却结构等;也难以加工某些材料的零件,如钛合金和高硬度材料。 However, it is difficult to CNC machine tools or manufacturing parts with complex surface structures, such as thin-walled structure, closed inner cavity structure and co-row cooling structure; difficult machining parts of certain materials, such as titanium alloy and high-hardness material.

[0003] 快速成型是一个新的制造方法,能够解决传统制造方法存在的问题。 [0003] Rapid prototyping is a new manufacturing methods, can solve the problems of the conventional method of manufacturing problems. 当前,最主要的快速成型材料有:树脂、粉末、纸、蜡、塑料材料甚至橡胶,并且它们只能用于概念模型、视觉原型。 Currently, the main rapid prototyping materials: resin, powder, paper, wax, plastic, or even rubber material, and they can only be used conceptual model, visual prototype. 加工出的零件在成型精度和效率上存在问题。 Parts machined problem in molding accuracy and efficiency. 另外,一些工艺受到材料性能的限制,不适于直接制造快速模具。 Further, some processes are limited material properties, suitable for direct rapid tooling manufacture. 金属零件有好的表面质量,高的形状和尺寸精度,和高的结构强度导致了无法直接地以传统快速成型方法来成型,因此无法满足制造业——尤其是快速模具制造领域——对零件机械性能的较高要求,工业上迫切需要一种能够快速制造金属零件的快速成型技术。 Metal parts have good surface quality, high dimensional accuracy and shape, high structural strength, and can not be led directly to a conventional rapid prototyping molding, and therefore can not meet manufacturing - especially rapid tooling art - the part high mechanical properties required, the industry urgent need for a rapid prototyping technology capable of rapid manufacturing of metal parts.

[0004] 目前国内外对金属零件的快速成型方法的研究主要有下述方面。 [0004] Current research on rapid prototyping of metal parts, there are mainly the following aspects.

[0005] 一、立体光造形(Stereo Lithography Apparatus,SLA)技术。 [0005] First, three-dimensional stereolithography (Stereo Lithography Apparatus, SLA) technology. SLA 技术又称光固化快速成型技术,其原理是计算机控制激光束对光敏树脂为原料的表面进行逐点扫描,被扫描区域的树脂薄层(约十分之几毫米)产生光聚合反应而固化,形成零件的一个薄层。 SLA technique known as photo-curable rapid prototyping, which is the principle of computer-controlled laser beam scans the photosensitive resin as the surface point by point of the raw material, the resin sheet is scanned area (out of about a few millimeters) to generate light curing polymerization reaction, forming a thin part. 工作台下移一个层厚的距离,以便固化好的树脂表面再敷上一层新的液态树脂,进行下一层的扫描加工,如此反复,直到整个原型制造完毕。 A layer thickness from the table down to the surface of the cured resin layer and then putting a new liquid resin, scan processing of the next layer, and so forth, until the entire finished prototyping. 由于光聚合反应是基于光的作用而不是基于热的作用,故在工作时只需功率较低的激光源。 Since the photopolymerization reaction is based on the effect of light rather than on the action of heat, so that only low power laser light source during operation. 此外,因为没有热扩散,加上链式反应能够很好地控制,能保证聚合反应不发生在激光点之外,因而加工精度高),表面质量好,原材料的利用率接近100%,能制造形状复杂、精细的零件,效率高。 In addition, because there is no thermal diffusion, plus chain reaction can be well controlled, to ensure that the polymerization did not occur outside the laser spot, and therefore high precision), the surface quality is good, close to 100% utilization of raw materials can be manufactured complex shape, fine parts, and high efficiency. 对于尺寸较大的零件,则可采用先分块成型然后粘接的方法进行制作。 For larger size components may be employed to block forming process and then bonding was produced. 缺点:(1)成型过程中伴随着物理和化学变化, 所以制件较易弯曲,需要支撑,(2)设备运转及维护成本较高。 Disadvantages: (1) molding process is accompanied by physical and chemical changes, the parts relatively flexible, to be supported, (2) higher equipment operation and maintenance costs. (3)可使用的材料种类较少。 (3) less types of materials can be used. (4)液态树脂具有气味和毒性,并且需要避光保护,以防止提前发生聚合反应,选择时有局限性。 (4) a liquid resin having an odor and toxicity, and protected from light required to prevent the polymerization reaction in advance, there are limitations when choosing. (5)需要二次固化。 (5) the need for secondary curing. (6)液态树脂同化后的性能尚不如常用的工业塑料,一般较脆、 易断裂,不使进行机加工,树脂收缩导致精度下降、光固化树脂有一定的毒性等。 (6) performance of the liquid resin is not assimilated as commonly used industrial plastics, are generally more brittle, breakable, without machining, resin shrinkage reduces the accuracy, photo-curable resin has a certain toxicity. 该方法主要用于成型零件原型,金属零件加工中,需要以此原型经失蜡铸造制作金属零件,成型时间较长,加工成本较高。 This method is primarily used for prototype molding parts, machining of metal parts, required in order to produce the prototype by lost wax casting metal parts, a longer molding time, higher processing cost.

[0006] 二、直接熔融金属成型零件的技术,主要包括选择性激光烧结SLS (Selective Laser Sintering)技术、激光熔覆成型LCF(Laser Cladding Forming)技术、激光近形LENS (Laser Engineering Net Shaping)技术等。 [0006] Second, the molten metal formed parts directly in the art, including selective laser sintering SLS (Selective Laser Sintering), laser cladding forming LCF (Laser Cladding Forming) technology, Laser Engineered Net Shaping LENS (Laser Engineering Net Shaping) technology Wait. SLS的成型原理是:先在工作台上用辊筒铺一层粉末加热至略低于它的熔化温度,然后,激光束在计算机的控制下按照截面轮廓的信息, 对加工的实心部分所在的粉末进行扫描,使粉末的温度升至熔化点,于是粉末交界处熔化后相互粘结,逐步得到各层轮廓。 SLS is forming principle: first in the table with a roll to a layer of powder is heated just below its melting temperature, and then, a laser beam according to the information of cross-sectional profile of the solid part of the process where the computer is under the control of powder scan, the temperature was raised to the melting point of the powder, the powder is then bonded to each other at the junction of the melting, the layers gradually profile. 在非烧结区的粉末仍呈松散状,作为工件和下一层粉末的支撑。 Fluffy powder still on the non-sintered areas, a workpiece support and the lower layer of powder. 一层成型完成后,工作台下降一截面层的高度,再进行下一层的铺料和烧结,如此循环最终形成三维工件。 After the completion of forming a layer, a cross section of the table descent layer, then the next layer of plated material and sintering, and so eventually form a three dimensional workpiece. LCF技术的工作原理是通过对工作台数控,实现激光束对粉末的扫描、熔覆,最终成型出所需形状的零件。 Art works LCF CNC table is to realize a laser beam scanning the powder, through the cladding, the final forming parts of the desired shape. 研究结果表明:零件切片方式、激光熔覆层厚度、激光器输出功率、光斑大小、光强分布、扫描速度、扫描间隔、扫描方式、送粉装置、送粉量及粉末颗粒的大小等因素均对成型零件的精度和强度有影响。 The results show that: the part sections embodiment, the thickness of the laser cladding, laser output power, spot size, intensity distribution, scanning speed, scanning interval, scanning, powder feeder, the powder feed rate and size of the powder particles and other factors of accuracy and strength molded part affected. LENS技术则是将SLS技术和LCF 技术相结合,并保持了这两种技术的优点;选用的金属粉末有三种形式:(1)单一金属;(2) 金属加低熔点金属粘结剂;(3)金属加有机粘结剂。 LENS Technical sucked SLS technology and LCF technology, and maintaining the advantages of the two technologies; selected metal powder in three forms: (1) a single metal; (2) a low melting point metal binder metal processing; ( 3) addition of an organic binder metal.

[0007] 上述直接熔融金属成型零件的技术的缺点在于均采用的是铺粉方式,所以不管使用哪种形式的粉末,激光烧结后的金属的密度较低、多孔隙、强度较低。 [0007] The disadvantages of the above-described technique molten metal directly molded parts that are used are dusting manner, the use of either form of the powder, the lower the density of the metal laser sintering, porous low intensity. 要提高烧结零件强度,必须进行后处理,如浸渗树脂、低熔点金属,或进行热等静压处理,但这些后处理会改变金属零件的精度,且表面粗糙度较高,成型效率不高。 To increase the strength of sintered parts, must be post-treatment such as impregnation resins, low melting point metal, or hot isostatic pressing, but these changes will be processed for precision metal parts, and a higher surface roughness, the molding efficiency is not high .

发明内容 SUMMARY

[0008] 本发明的目的在于针对现有技术的不足而提供一种成型效率高,制备的零件组织致密、晶粒细小、表面粗糙度低,适用范围广的激光熔覆成型设备;同时提供一种基于该激光熔覆成型设备的金属零件的激光熔覆成型方法。 [0008] The object of the present invention is for the deficiencies of the prior art and to provide a shaped high efficiency, replacement tissue preparation dense, fine grain size, low surface roughness, for a wide range of laser cladding molding apparatus; while providing a the types of laser cladding method for forming a molding apparatus laser cladding of metal parts based.

[0009] 为实现上述目的,本发明采用如下技术方案:一种激光熔覆成型设备,包括CNC数控工作平台,所述CNC数控工作平台设置有可做XYZ三维运动的工作台,所述工作台上方固设有激光器装置,所述激光器装置的激光束输出端正对所述工作台,它还包括送丝装置和控制系统;所述送丝装置包括支架和送丝嘴,所述支架内设置有夹送辊轮对,所述夹送辊轮对的主动轮与一步进电机的输出轴连接,该步进电机固设于所述支架,所述送丝嘴通过一三维调节器与所述支架连接;所述控制系统包括设置有运动控制软件的运动控制模块, 所述运动控制模块设置有多轴运动控制卡,该多轴运动控制卡分别与所述步进电机和驱动工作台XYZ三维运动的驱动电机连接,所述多轴运动控制卡亦与所述激光装置的激光头转动驱动装置连接。 [0009] To achieve the above object, the present invention adopts the following technical solutions: A laser cladding molding apparatus, comprising a CNC machine working platform, the working platform is provided with a CNC machine XYZ stage to do three-dimensional motion, the table is provided above the solid laser device, the laser beam output of the laser device to correct the stage, further comprising a wire feeder and a control system; the wire feeder comprises a wire feeding nozzle and a bracket, said bracket is provided with a pinch roll pair, said clip feed roller driving wheel of the stepping motor with the output shaft, the stepping motor is fixed on the bracket, the wire nozzle by a regulator of the three-dimensional bracket; said motion control system comprises a control software module controls the motion, the motion control module is provided with multi-axis motion control card, the cards are three-dimensional multi-axis motion control of the stepping motor and the XYZ stage drive the driving motion of the motor is connected to the multi-axis motion control card also laser head of the laser device is connected to rotary drive means.

[0010] 其中,所述控制系统还包括设置于CNC数控工作平台的温度感应器。 [0010] wherein said control system further comprises a platform disposed in the CNC work temperature sensor.

[0011] 其中,所述CNC数控工作平台在所述工作台周缘设置有限位开关,所述限位开关与所述多轴运动控制卡连接。 [0011] wherein said CNC machine working platform edge limit switch is provided in the circumferential table, said limit switch is connected to the multi-axis motion control card.

[0012] 进一步地,所述夹送辊轮对的从动轮枢接在一从动轮调节器上;所述从动轮调节器包括一调节杆和一调节螺栓;所述调节杆铰接在支架内,从动轮枢接在调节杆靠近自由端处;所述调节螺栓螺接于支架,调节螺栓的前端顶抵所述调节杆的自由端。 Driven wheel pivot [0012] Further, the pair of pinch rollers connected to the regulator a driven wheel; a driven wheel adjuster comprises an adjusting lever and an adjusting bolt; the adjusting lever is hinged in the holder, driven wheel in the adjustment lever pivoted adjacent the free end; said free end of adjustment screw screwed to the bracket, the front end of the adjusting bolt is abutted against the adjusting lever.

[0013] 更进一步地,所述夹送辊轮对的主动轮的周缘面开设有夹丝槽,所述从动轮周缘面对应主动轮夹丝槽的位置亦开设有夹丝槽;所述夹丝槽槽壁内设置有防滑纹。 [0013] Still further, the pair of pinch rollers the driving wheel peripheral surface defines a wired channel, facing the periphery of the driven wheel capstan wired location should also defines a groove wire clip groove; the inner clip wire is provided with groove wall antiskid grooves.

[0014] 其中,所述送丝嘴铰接在所述三维调节器前端。 [0014] wherein the wire nozzle is hinged in the front end of the three-dimensional actuator.

[0015] 其中,所述送丝嘴上设有用来输送激光熔覆工艺所需保护气体的保护气喷嘴。 [0015] wherein said wire has a mouth for the desired protective gas shield gas nozzle conveying a laser cladding process.

[0016] 作为实现本发明另一发明目的技术方案,一种金属零件激光熔覆成型方法,包括以下步骤:a、建模,利用CAD软件或反求技术生成零件的CAD三维模型,利用成形控制软件将所述CAD三维模型按一定间距切割成一系列平行薄片,得到各层薄片的轮廓数据;b、指令转换,根据各层薄片的轮廓数据设计工作台的运动轨迹,将该运动轨迹转换成多轴运动控制卡的控制指令,并将所述控制指令输出至所述所述多轴运动控制卡;c、薄片成型,多轴运动控制卡控制工作台做X向和Y向运动,同时控制送丝装置将金属丝送至工作台上方正对激光器激装置激光束输出端的位置,激光器装置产生激光束,热熔金属丝前端,形成熔滴并滴落于工作台,所述熔滴在工作台上堆积冷却,并随工作台运动而形成薄片;d、沉积成型,完成薄片的成型后,多轴运动控制卡控制工作台 [0016] As the present invention to achieve a further object of the aspect of the invention, laser cladding of a metal part forming method, comprising the steps of: a, modeling, three-dimensional model using a CAD or CAD software techniques to generate reverse part by a forming control the three-dimensional CAD software model of the spaced series of parallel cut sheet, the sheet layers to obtain contour data; B, instruction converter, designed in accordance with the trajectory data table contour of sheet layers, the trajectory is converted into a multi- axis motion control card control command, and outputs the control command to the multi-axis motion control card; C, sheet molding, multi-axis motion control card control table to make X and Y motion, while controlling the feed wire device the wire to the work table position Founder the laser excitation means of the laser beam output of the laser device generating a laser beam, hot wire distal end, and dropping a droplet is formed on the table, the table in droplet the cooling accumulation, and the sheet is formed with the table movement; the d, deposition molding, sheet molding complete, multi-axis motion control card control table 做Z向运动,向下运动步骤a所述间距的距离,再以步骤c进行下一薄片的成型,并依次完成各层薄片的成型,熔滴堆积冷却沉积成型而制得金属零件。 Z to do exercise, the downward movement step of a spacing distance, and then to step c for forming a next sheet, and in order to complete the layers forming the sheet, cooling deposited droplet deposition modeling prepared metal parts.

[0017] 其中,所述金属丝采用直径为0. 4mm〜0. 6mm的金属丝。 [0017] wherein the wire is a metal wire with a diameter of 0. 4mm~0. 6mm in.

[0018] 其中,所述步骤c中,送丝装置的送丝速度为10〜40mm/s,所述工作台的X向和Y 向运动的移动速度为5〜30mm/s,所述激光器装置产生激光束的功率为0. 8〜1. 2kw。 [0018] wherein, said step c, the wire feed speed of wire feed apparatus 10~40mm / s, the X-stage and Y-movement of the moving speed of 5~30mm / s, the laser device generating a laser beam power is 0. 8~1. 2kw.

[0019] 本发明有益效果为:通过激光熔融金属丝,形成熔滴,熔滴在工作台上堆积冷却, 并随工作台运动而形成薄片,各个薄片依次一层层沉积而形成三维金属零件;本发明制造过程不需采用铸造模型或锻造模具以及其它专用加工设备,显著降低了制造成本;简化了工艺流程,成型效率高;由于零件是由金属熔滴堆积沉积而成,故而制备的零件组织致密、 晶粒细小、表面粗糙度低,零件结构强度和表面质量高;本发明能够方便迅捷地制造传统工艺方法难以制造甚至无法制造的复杂金属零件,适于传统方法难以加工的高加工硬化率金属、难熔金属、金属间化合物等材料的成形,适用范围广。 [0019] Advantageous effects of the present invention are: a sheet is formed by laser melting metal wire to form a droplet, the droplet deposited cooled on the bench, and with the table movement, each sheet formed by depositing successively layers of a three-dimensional metal parts; the present invention does not employ a manufacturing process or forging die casting model, and other processing equipment, significantly reduces the manufacturing cost; simplifies the process, a high molding efficiency; since the parts are made of a metal deposited by droplet deposited, and therefore part of the tissue preparation dense, fine grain size, low surface roughness, high surface quality and structural strength of parts; the present invention can conveniently be a conventional process for manufacturing a quick manufacture of complex metal parts is difficult if not impossible to manufacture, difficult to process adapted to the conventional method of high work hardening rate forming a metal material, refractory metals, intermetallic compounds, a wide range.

附图说明 BRIEF DESCRIPTION

[0020] 利用附图对本发明作进一步说明,但附图中的实施例不构成对本发明的任何限制。 [0020] using the drawings The present invention is further illustrated, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0021] 附图1是本发明的一种激光熔覆成型设备的结构示意图。 [0021] Figure 1 is a structural diagram of a laser according to the present invention, the cladding forming apparatus.

[0022] 附图2是本发明的一种激光熔覆成型设备的激光器装置和送丝装置的局部结构示意图。 [0022] Figure 2 is a laser device of the present invention, a laser cladding apparatus and forming a partial schematic configuration of the wire feeding apparatus.

[0023] 附图3是本发明的一种激光熔覆成型设备的送丝装置的结构示意图。 [0023] Figure 3 is a schematic diagram of the wire feeding apparatus of the present invention for laser cladding molding apparatus.

[0024] 附图4是本发明的一种激光熔覆成型设备的送丝装置的另一视角的示意图。 [0024] Figure 4 is a perspective schematic view of another wire feed apparatus of the present invention for laser cladding molding apparatus.

[0025] 附图5是本发明的一种金属零件激光熔覆成型方法的步骤流程图。 [0025] Figure 5 is a flowchart illustrating steps of one method of forming the laser cladding of metal parts according to the present invention.

[0026] 图1、图2、图3和图4中包括: [0026] FIG 1, FIG 2, FIG 3 and FIG 4 comprising:

1——工作台 2——激光器装置21——激光头 1-- 2-- stage laser head laser device 21--

22——激光束输出端3——送丝装置 313——丝盘 22-- laser beam output end of the wire feeder 3-- godet 313--

314——导管 315——保护气喷嘴32——支架 314-- 315-- protective gas nozzle conduit holder 32--

331——主动轮 332——从动轮35——三维调节器 331-- 332-- driving wheel driven wheel 35-- dimensional regulator

35a——X轴调节器35b——Z轴调节器35c——Y轴调节器36——送丝嘴 371——调节杆372——调节螺栓 35a - X-axis adjuster 35b - Z-axis adjuster 35c - Y-axis regulator 36-- wire nozzle 371-- 372-- adjustment lever adjusting screw

38——步进电机4——控制系统41——多轴运动控制卡5——金属丝。 38-- 4-- stepper motor control system of multi-axis motion control card 5-- 41-- wire.

具体实施方式 Detailed ways

[0027] 下面结合附图对本发明作进一步的说明,见图1〜图4所示,一种激光熔覆成型设备,包括CNC数控工作平台,所述CNC数控工作平台设置有可做XYZ三维运动的工作台1, 所述工作台1上方固设有激光器装置2,所述激光器装置2的激光束输出端22正对所述工作台1,它还包括送丝装置3和控制系统4 ;所述送丝装置3包括支架32和送丝嘴36,所述支架32内设置有夹送辊轮对,所述夹送辊轮对的主动轮331与一步进电机38的输出轴连接,该步进电机38固设于所述支架32,所述送丝嘴36通过一三维调节器35与所述支架32 连接;所述控制系统4包括设置有运动控制软件的运动控制模块,所述运动控制模块设置有多轴运动控制卡41,该多轴运动控制卡41分别与所述步进电机38和驱动工作台1X-YZ 三维运动的驱动电机连接,所述多轴运动控制卡41亦与所述激光装置的激光头21转动驱动 [0027] DRAWINGS The present invention will be further described, see Figure 1 ~ A laser cladding molding apparatus, comprising a CNC machine working platform, the working platform is provided with a CNC machine do XYZ three-dimensional motion 4 table 1, above the fixing table 1 is provided with a laser apparatus 2, the laser beam output of the laser apparatus 22 of the facing table 1, further comprising wire feeding means 3 and the control system 4; the said wire feeding device 3 includes a bracket 32 ​​and wire nozzle 36, the bracket 32 ​​is provided with a pair of pinch rollers, said clip feed capstan roller pair 331 is connected to the stepping motor output shaft 38, the a stepping motor 38 fixed to the bracket 32, the wire nozzle 36 is connected via a three-dimensional actuator 35 with the bracket 32; the control system 4 is provided with a motion control software includes a motion control module, a motion the control module is provided with a multi-axis motion control card 41, the multi-axis motion control card 41 is connected to the stepping motor 38 and the drive motor driving the stage three-dimensional motion 1X-YZ, the multi-axis motion control card 41 and also the rotary drive head 21 of the laser of the laser device 置连接。 Home connection.

[0028] 见图5所示,利用本发明所述的激光熔覆成型设备的一种金属零件激光熔覆成型方法,包括以下步骤:a、建模,利用CAD软件或反求技术生成零件的CAD三维模型,利用成形控制软件将所述CAD三维模型按一定间距切割成一系列平行薄片,得到各层薄片的轮廓数据;b、指令转换,根据各层薄片的轮廓数据设计工作台1的运动轨迹,将该运动轨迹转换成多轴运动控制卡41的控制指令,并将所述控制指令输出至所述所述多轴运动控制卡41 ;c、 薄片成型,多轴运动控制卡41控制工作台1做X向和Y向运动,同时控制送丝装置3将金属丝5送至工作台1上方正对激光器激装置激光束输出端22的位置,激光器装置2产生激光束,热熔金属丝5前端,形成熔滴并滴落于工作台1,所述熔滴在工作台1上堆积冷却,并随工作台1运动而形成薄片;d、沉积成型,完成薄片的成型后,多 [0028] As shown in Figure, according to the present invention using a laser cladding of a metal molding apparatus laser cladding parts 5 forming method, comprising the steps of: a, modeling, CAD software or using reverse technology generation part three-dimensional CAD model, using the control software forming the three-dimensional CAD model of the spaced series of parallel cut sheet, the sheet layers to obtain contour data; B, the conversion instruction, the trajectory of each layer in accordance with the design outline data sheet table 1 , the trajectory is converted into multi-axis motion control card 41 of a control command and the control command is output to the multi-axis motion control card 41; C, sheet molding, multi-axis motion controller 41 controls the table 1 to make X and Y motion, while the control wire feeder 3 the wire 1 onto the stage 5 Founder excited laser device location 22 of the output of the laser beam, the laser device 2 generates a laser beam, hot wire 5 front end, and dropping a droplet is formed on the table 1, the droplet deposited on the table 1 is cooled, and with the movement of table 1 to form a sheet; rear d, deposition molding, sheet molding is completed, the multi- 轴运动控制卡41控制工作台1做Z向运动,向下运动步骤a所述间距的距离,再以步骤c进行下一薄片的成型,并依次完成各层薄片的成型,熔滴堆积冷却沉积成型而制得金属零件。 Axis motion control card 41 controls the Z stage to make a motion, a downward movement step of the spacing distance, and then to step c for forming a next sheet, and successively forming each layer of the sheet is completed, the cooling deposited droplet deposition prepared molded metal parts.

[0029] 在金属零件的熔覆成型加工过程中,通过调节所述三维调节器35,使送丝嘴36精确的对准激光束输出端22在工作台1上形成的焦点处;待制备的零件三维结构经所述的步骤a和步骤b形成控制指令;CNC数控工作平台的机架上枢接有丝盘314,在工作时,将盘绕于丝盘314的金属丝5拉出,送入所述支架32 ;金属丝5在支架32内经过一辅助轮和夹送辊轮对,被校直拉紧的同时,通过所述主动轮331,获得步进电机38提供的送进动力;金属丝5从支架32的出丝端导出后,进入送丝嘴366,并从送丝嘴36的前端伸出,被激光器装置2产生的激光加热融化而形成熔滴,依次经所述的步骤c和步骤d而堆积成三维零件。 [0029] In the process of forming the cladding of metal parts, by adjusting the three-dimensional actuator 35, the focus 22 is formed on the table 36 a wire nozzle precise alignment of the laser beam output; be prepared three-dimensional structure is part of the steps a and b form a control instruction; the rack of CNC work platform pivotally connected with a wire reel 314, at work, in the coiled wire reel 314 is pulled out of the wire 5, fed the bracket 32; auxiliary wire 5 through a gear wheel and the pinch roller, while being tensioned linear correction, through the driving wheel 331, the stepping motor 38 to obtain a power feed provided within the holder 32; a metal wire 5 from the end of the stent wire 32 is derived into the wire nozzle 366, and extends from the distal end of wire nozzle 36, the laser light is generated by laser device 2 is heated and melted to form droplets, sequentially through the step c and d and stacked in three-dimensional parts. 送丝装置3送丝的位置精度由三维调节器35保证,送丝速度的精度由多轴运动控制卡41控制步进电机38保证。 3 positional accuracy of the wire feeder feeding wire to ensure a three-dimensional actuator 35, the accuracy of the wire feed speed is controlled by a multi-axis motion control card 41 to ensure that the stepping motor 38.

[0030] 本发明通过激光熔融金属丝5,形成熔滴,熔滴在工作台1上堆积冷却,并随工作台1运动而形成薄片,各个薄片依次一层层沉积而形成三维金属零件;本发明制造过程不需采用铸造模型或锻造模具以及其它专用加工设备,显著降低了制造成本;简化了工艺流程,成型效率高;由于零件是由金属熔滴堆积沉积而成,故而制备的零件组织致密、晶粒细小、表面粗糙度低,零件结构强度和表面质量高;本发明能够方便迅捷地制造传统工艺方法难以制造甚至无法制造的复杂金属零件,适于传统方法难以加工的高加工硬化率金属、难熔金属、金属间化合物等材料的成形,适用范围广。 [0030] The present invention, by laser melting a wire 5 to form a droplet, the droplet deposited on the table 1 is cooled, and the movement of table 1 is formed with the sheet, each sheet formed by sequentially depositing layers of a three-dimensional metal parts; present invention without using a manufacturing process or forging die casting model, and other processing equipment, significantly reduces the manufacturing cost; simplifies the process, a high molding efficiency; since the parts are made of a metal deposited by droplet deposited, and therefore a dense part of the tissue preparation fine grain size, low surface roughness, high surface quality and structural strength of parts; the present invention can conveniently be a conventional process for manufacturing a quick manufacture of complex metal parts is difficult if not impossible to manufacture, difficult to process adapted to the conventional method of high work hardening of the metal molding material is a refractory metal, an intermetallic compound, a wide range.

[0031] 其中,所述的多轴运动控制卡41 (即Program Multiple Axises Controller,简称PMAC)是美国Delta Tau公司九十年代最早推出的开放式多轴运动控制器,它提供运动控制、离散控制、内务处理、同主机的交互等数控的基本功能,广泛应用于多轴运动的控制系统,这里不赘述其构造和工作原理。 [0031] wherein said multi-axis motion control card 41 (i.e. Program Multiple Axises Controller, referred to as the PMAC) is the US company Delta Tau nineties open first introduced multi-axis motion controller, it provides motion control, discrete control the basic function of numerical control, housekeeping, interaction with the host, widely used in multi-axis motion control system, and not repeat them here its structure and how it works.

[0032] 其中,本实施例所述的三维调节器35由X轴调节器35a、Y轴调节器35c和Z轴调节器35b组成;所述的X轴调节器35a、Y轴调节器35c和Z轴调节器35b均由一对滑动副和一个用于控制滑动副相对滑动的调节螺杆组成;所述Y轴调节器35c的滑动副分别与X轴调节器35a的滑动副,以及Z轴调节器35b的滑动副固接;使用时通过拧动各个调节螺杆,调节与之对应的滑动副的相对位置,从而实现X、Y、Z三维空间位置的调节。 [0032] wherein the three-dimensional embodiment of the present embodiment of the regulator 35 by an X-axis actuator 35a, Y-axis and Z-axis actuator 35c composed regulator 35b; X-axis adjuster according 35a, Y-axis and the actuator 35c Z-axis by a pair of regulator 35b and a sub-slide for controlling the relative sliding of the slide adjusting screw composed; sliding pair, Y-axis and Z-axis of the sub-slide adjuster 35c are X-axis adjustment actuator 35a the sub slider 35b is fixed; each adjusted by screwing using screws, to adjust the relative position of the corresponding sub-slide, enabling X, Y, Z three-dimensional position adjustment. 当然,三维调节技术属于成熟的现有技术,只要能实现三维空间位置的精确调节,本发明也可以采用其它结构的三维调节器。 Of course, three-dimensional adjustment prior art technology is mature, precise adjustment can be achieved as long as the three-dimensional position, the present invention may be employed a three-dimensional structure of the other regulators.

[0033] 本发明所述的控制系统4还包括设置于CNC数控工作平台的温度感应器。 [0033] The control system of claim 4 further comprising the present invention disposed on the working platform of CNC temperature sensor. 在加工过程中,熔滴滴落于工作台1,与之前滴落于工作台1的熔滴融合,最后冷却而形成固态金属零件,这个过程中,金属由液态转换为固态的凝固速度很重要,凝固过快,则熔滴与熔滴之间,或薄片与薄片之间金相组织无法相互融合,形成的零件结构强度不强,易在熔滴与熔滴之间,或薄片与薄片之间产生裂纹;若熔滴凝固速度过慢,则成型过程中,液态金属易流动而无法定型,影响成型尺寸;熔滴的凝固速度取决于熔滴自身温度和环境温度,熔滴温度由激光温度决定,而环境温度则需要监控并调节,所述温度感应器即用于监控环境温度,并将采集的数据传递至控制系统4,进而转化成多轴运动控制卡41调节步进电机38送丝速度和工作台1移动速度的参数,这提高了本发明的工作可靠性。 In the process, it drips down to the table 1, before dropping to the table 1 of the droplet fusion, and finally cooled to form a solid metal part, the process, converted from a liquid to a solid metal solidification rate is important , rapid solidification, between the droplet and the droplet, or sheet between the microstructure and the sheet can not be integrated with each other, forming part of the structural strength is not strong, easily between the droplet and the droplet or sheet of the sheet between the cracks; if droplet solidification rate is too slow, the molding process, the flow of liquid metal can not be easily shaped, molded Effect size; droplet solidification rate depends on the droplet itself and ambient temperature, the temperature of the droplet by the laser temperature decision, it is necessary to monitor the temperature and adjust the temperature sensor was used to monitor the ambient temperature, and transfer the collected data to the control system 4, and further converted into a multi-axis motion controller 41 adjust the wire feed stepping motor 38 speed parameter table 1 and the moving speed, which improves the reliability of the present invention.

[0034] 其中,所述CNC数控工作平台在所述工作台1周缘设置有限位开关,所述限位开关与所述多轴运动控制卡41连接。 [0034] wherein the working platform of CNC limit switch is provided in the periphery of the table 1, the limit switch and the multi-axis motion control card 41 is connected. 工作过程中,可能由于工作台1的装配误差、磨损、控制信号误差等因素而产生工作台1的移动误差,这将影响零件的成型精度,故而设置限位开关, 用于监控反馈控制工作台1的移动误差。 During operation, the table 1 may be due to an assembly error, the wear, the control signal error factors like the table moves to generate an error of 1, which will affect the accuracy of the molded part, and therefore the limit switch, the feedback control stage for monitoring 1 is a movement error. 当然,这种对工作台1移动误差的监控反馈的装置也可以是光栅尺、传感器等。 Of course, such monitoring means for moving the stage 1 error feedback may be a grating, sensor or the like.

[0035] 见图3所示,所述夹送辊轮对的从动轮枢接在一从动轮调节器上;所述从动轮调节器包括一调节杆371和一调节螺栓372 ;所述调节杆371铰接在支架32内,从动轮枢接在调节杆371靠近自由端处;所述调节螺栓372螺接于支架32,调节螺栓372的前端顶抵所述调节杆371的自由端。 [0035] As shown in Figure 3, the pivot clamp feed roller driven wheel pair connected to the regulator a driven wheel; said regulator comprises a driven wheel adjusting rod 371 and an adjustment screw 372; the adjusting lever 371 articulated in the holder 32, the driven wheels pivoted at the free end close to the adjusting lever 371; the adjusting bolt 372 is screwed to the bracket 32, the front end of the top adjustment screw 372 abuts the end of the rod 371 is freely adjusted. 所述调节螺栓372螺接在支架32上,调节螺栓372的前端顶抵所述调节杆371的自由端。 The adjusting screw 372 is screwed to the holder 32, the front end of the top adjustment screw 372 abuts the end of the rod 371 is freely adjusted. 拧动所述调节螺栓372,调节杆371由于其自由端受调节螺栓372的抵压而绕铰链转动,从而调节枢接于其上的从动轮相对主动轮331的距离;这样可以调节所述夹送辊轮对对金属丝5的夹紧程度,同时,当该夹送辊轮对夹送不同截面直径的金属丝5时,也可以通过调节所述从动轮调节器,从而实现对不同尺寸金属丝5的夹送,进一步增强了本发明的适用范围。 Screwing the adjusting screw 372, since the adjusting lever 371 is regulated by the free end of the pressing screw 372 is rotated about the hinge, thereby adjusting the distance pivoted relative thereto on the driven wheel of the driving wheel 331; the clip can be adjusted so feed rollers for gripping the wire 5 degree, while, when the pinch roller to pinch a different cross-sectional diameter of the wire 5, can be adjusted by the driven wheel adjuster so as to achieve different sizes of metal pinch the wire 5, further enhancing the scope of this invention.

[0036] 其中,所述夹送辊轮对的主动轮331的周缘面开设有夹丝槽,所述从动轮周缘面对应主动轮331夹丝槽的位置亦开设有夹丝槽;所述夹丝槽槽壁内设置有防滑纹。 Peripheral surface [0036] wherein said pair of pinch rollers of the driving wheel 331 defines a wired channel, facing peripheral edge of the driven wheel should be wired capstan 331 also defines a slot position sandwiched archwire slot; the inner clip wire is provided with groove wall antiskid grooves. 该夹丝槽可以保护金属丝5在被夹送时不至于被压坏,同时,由于夹送时,金属丝5与夹丝槽的槽壁接触,增大了与夹送辊轮对的接触面积,从而在相同的夹紧力下增加了送丝的摩擦力。 The groove may be wired protective wire 5 will not be crushed when the pinch, at the same time, due to pinch the wire 5 contacts the groove wall of the groove wire clip, increasing the pinch roller into contact with the pair of area, thereby increasing the frictional force of the feed wire at the same clamping force.

[0037] 其中,所述送丝嘴36铰接在所述三维调节器35前端。 [0037] wherein said wire feed nozzle 36 is hinged at the front end of the three-dimensional actuator 35. 这样,送丝嘴36可绕三维调节器35的前端转动,从而调节送丝的角度,而上述的三维调节器35主要用于精确控制送丝嘴36的空间定位。 Thus, the front end of wire nozzle 36 may be rotatable about the three-dimensional actuator 35 to adjust the wire feed angle, and said three-dimensional actuator 35 is mainly used for precise control of the spatial positioning of wire nozzle 36. 本实施例所述送丝嘴36还可以在所述三维调节器35上更换不同内径的送丝嘴36,以满足不同型号金属丝5的送丝需要。 This embodiment of the wire nozzle 36 may be of different internal diameters in the replacement of the three-dimensional actuator 35 on the wire feed nozzle 36, in order to meet the needs of different types of wire feed wire 5. [0038] 见图3和图4所示,所述送丝嘴36上设有用来输送激光熔覆工艺所需保护气体的保护气喷嘴315。 [0038] Figures 3 and 4, the wire feed nozzle with protective gas nozzle 315 for conveying a laser cladding process gas 36 required for protection.

[0039] 其中,所述支架32的进丝端与收卷有金属丝5的丝盘13之间,以及支架32的出丝端与送丝嘴36之间均设有导管314 ;所述导管314的作用在于限制和改变金属丝5的前进方向。 [0039] wherein the bracket into the wire winding end 32 are between the wire 13 and the wire end of the wire 36 between the nozzle conduit 314 has a wire holder 32 of the disc 5; said catheter and 314 to limit the effect of changing the traveling direction of the wire 5. 本实施例所述导管314的材料采用聚四氟乙烯,导管314的内径比金属丝5直径大0. 5-1. Ornm。 Examples of the material of the present embodiment using a teflon catheter 314, the catheter 314 is large inner diameter of 0. 5-1. Ornm than 5 wire diameters.

[0040] 本金属零件的激光熔覆成型方法中,所述金属丝5采用直径为0. 4mm〜0. 6mm的金属丝。 [0040] The laser cladding method for forming metal parts present in the wire is a metal wire with a diameter of 5 0. 4mm~0. 6mm in. 金属丝5的直径大小影响熔滴尺寸,亦即是说,对熔覆成型每一进尺的精度有影响。 5 wire diameter affect the size of droplet size, but also to say, each of the cladding forming accuracy influence footage. 若金属丝5直径过小,则熔滴尺寸小,成型速度慢,且对激光器装置2的能量利用率不高;若金属丝5直径过大,则有可能造成在激光熔化金属丝5的过程中,金属丝5端部未完全熔化而熔滴已滴落,这将造成熔滴不均勻,影响成型精度,故而选取直径为0. 4mm〜 0. 6mm的金属丝5,熔覆过程中,形成的熔滴尺寸适中,能有效提高成型精度和零件结构强度。 If the diameter of the wire 5 is excessively small, the small droplet size, the molding speed is slow and the energy efficiency of the laser device 2 is not high; wire 5 if the diameter is too large, it may cause the molten wire during the laser 5 , the end portion of the wire 5 is not completely melted droplets has dropped, it will cause uneven droplet impact precision molding, therefore select the wire diameter of 0. 4mm~ 0. 6mm 5, cladding process, moderate sized droplet, and can effectively improve the molding accuracy part structural strength.

[0041] 本金属零件的激光熔覆成型方法的步骤c中,送丝装置3的送丝速度为10〜 40mm/s,所述工作台1的X向和Y向运动的移动速度为5〜30mm/s,所述激光器装置2产生激光束的功率为0. 8〜1. 2kw。 [0041] Step c of the present method of forming a laser cladding of metal parts, the wire feed speed of the wire feeder 3 10~ 40mm / s, the stage X and Y 1 to the moving speed of movement is -5 to 30mm / s, the power of the laser device generating a laser beam 2 is 0. 8~1. 2kw. 送丝装置3的送丝速度与工作台1的移动速度是相互影响的,二者共同决定了零件的成型精度。 Wire feeding device 3 and the wire feed speed of the moving speed of the stage is a mutual influence, both together determine the molding accuracy of parts. 送丝速度过快,则金属丝5不能被完全熔化,熔滴在滴落前会有部分残留于未熔化的部分金属丝5表面,这将影响熔滴均勻性;送丝速度过慢, 则熔滴供给不能保证熔覆成型的需要,两相邻熔滴间不能有效结合,从而影响零件的结构强度。 Wire feed speed is fast, the wire 5 can not be completely melted droplets 5 in front of the surface portion of the wire have dropped to the unmelted portion remaining, which will affect the uniformity of the droplet; wire feed speed is too slow, droplet supplying cladding forming need not be guaranteed, can not be effectively incorporated between the two adjacent droplet, thus affecting the structural strength of the part. 同理,在一个薄片成型的过程中,工作平台的移动速度若与熔滴滴落速度不相匹配, 移动速度过慢则易造成熔滴堆积,过快则易造成两相邻熔滴间不能有效结合。 Similarly, in a sheet forming process, the moving speed of the work platform does not match if the drips off speed, movement could easily lead to too slow droplet accumulation, resulting in too easily between the two adjacent droplet can not be effective combination. 故而,在选定金属丝5直径的情况下,选择工作台1的X向和Y向运动的移动速度为5〜30mm/s,与之相匹配的,选择送丝速度为10〜40mm/s,这保证了熔滴产生、熔滴滴落的均勻性,进而保证了熔覆成型过程的均勻性,保证了成型精度。 Therefore, in the case where the diameter of the wire 5 is selected, to select the X and Y stage 1 to the moving speed of movement of 5~30mm / s, to match, selected wire feed speed 10~40mm / s this ensures that the droplet generation, the uniformity of the melt drops off, thereby ensuring the uniformity of the cladding forming process, to ensure that the molding accuracy.

[0042] 以上所述仅是本发明的较佳实施方式,故凡依本发明专利申请范围所述的构造、 特征及原理所做的等效变化或修饰,均包括于本发明专利申请范围内。 [0042] The above are only preferred embodiments of the present invention, where it is under this structure, characteristics and principles of the scope of the invention patent applications made equivalent variations or modifications are included in the patent application within the scope of the invention .

9 9

Claims (10)

  1. 激光熔覆成型设备,它包括CNC数控工作平台,所述CNC数控工作平台设置有可做XYZ三维运动的工作台,所述工作台上方固设有激光器装置,所述激光器装置的激光束输出端正对所述工作台,其特征在于:它还包括送丝装置和控制系统;所述送丝装置包括支架和送丝嘴,所述支架内设置有夹送辊轮对,所述夹送辊轮对的主动轮与一步进电机的输出轴连接,该步进电机固设于所述支架,所述送丝嘴通过一三维调节器与所述支架连接;所述控制系统包括设置有运动控制软件的运动控制模块,所述运动控制模块设置有多轴运动控制卡,该多轴运动控制卡分别与所述步进电机和驱动工作台XYZ三维运动的驱动电机连接,所述多轴运动控制卡亦与所述激光装置的激光头转动驱动装置连接。 Laser cladding molding apparatus, comprising a working platform of CNC, the CNC machine is provided with a working platform do XYZ three-dimensional stage movement, above the fixing table is provided with a laser device, the laser beam output of the laser device to correct the worktable, characterized by: further comprising a wire feeder and a control system; the wire feeder comprises a wire feeding nozzle and a bracket, provided with a pair of pinch rolls within the stent, the pinch rollers stepping motor and the driving wheel is connected to the output shaft of the stepping motor is fixed on the bracket, the nozzle through a three-dimensional wire adjuster and the bracket; said control system comprises controlled movement motion control software module, the motion control module is provided with multi-axis motion control card, the multi-axis motion control card are connected to the driving motor driving the stepping motor and the movement of the XYZ three-dimensional stage, the multi-axis motion control Cards also laser head of the laser device is connected to rotary drive means.
  2. 2.根据权利要求1所述的激光熔覆成型设备,其特征在于:所述控制系统还包括设置于CNC数控工作平台的温度感应器。 2. Laser according to claim 1 cladding molding apparatus, wherein: said control system further comprises a platform disposed in the CNC work temperature sensor.
  3. 3.根据权利要求2所述的激光熔覆成型设备,其特征在于:所述CNC数控工作平台在所述工作台周缘设置有限位开关,所述限位开关与所述多轴运动控制卡连接。 The laser according to claim 2 cladding molding apparatus, wherein: said work platform of CNC limit switch is provided in the periphery of the table, the limit switch is connected to the multi-axis motion control card .
  4. 4.根据权利要求3所述的激光熔覆成型设备,其特征在于:所述夹送辊轮对的从动轮枢接在一从动轮调节器上;所述从动轮调节器包括一调节杆和一调节螺栓;所述调节杆铰接在支架内,从动轮枢接在调节杆靠近自由端处;所述调节螺栓螺接于支架,调节螺栓的前端顶抵所述调节杆的自由端。 4. The laser cladding forming apparatus according to claim 3, wherein: said clip feed roller driven wheel pivotally connected to the pair of a driven wheel adjuster; said regulator comprises a driven wheel and the adjustment rod an adjusting bolt; the adjusting lever articulated stent, the driven wheel in the adjustment lever pivoted adjacent the free end; said free end of adjustment screw screwed to the bracket, the front end of the adjusting bolt is abutted against the adjusting lever.
  5. 5.根据权利要求4所述的激光熔覆成型设备,其特征在于:所述夹送辊轮对的主动轮的周缘面开设有夹丝槽,所述从动轮周缘面对应主动轮夹丝槽的位置亦开设有夹丝槽;所述夹丝槽槽壁内设置有防滑纹。 Laser cladding according to claim molding apparatus of claim 4, wherein: said clip driving wheel peripheral surface of feed roller pair defines a wired channel, facing peripheral edge of the driven wheel should capstan Wired also defines the position of the groove wire clip groove; inner wire of the clip is provided with a groove wall of the groove antiskid.
  6. 6.根据权利要求5所述的激光熔覆成型设备,其特征在于:所述送丝嘴铰接在所述三维调节器前端。 6. A laser as claimed in claim 5 cladding molding apparatus, wherein: the wire nozzle in the hinged front end of the three-dimensional actuator.
  7. 7.根据权利要求6所述的激光熔覆成型设备,其特征在于:所述送丝嘴上设有用来输送激光熔覆工艺所需保护气体的保护气喷嘴。 The laser according to claim 6 cladding molding apparatus, wherein: said wire has a mouth for the desired protective gas shield gas nozzle conveying a laser cladding process.
  8. 8.使用如权利要求1〜7任意一项所述的激光熔覆成型设备的一种金属零件激光熔覆成型方法,其特征在于它包括以下步骤:a、建模,利用CAD软件或反求技术生成零件的CAD三维模型,利用成形控制软件将所述CAD三维模型按一定间距切割成一系列平行薄片,得到各层薄片的轮廓数据;b、指令转换,根据各层薄片的轮廓数据设计工作台的运动轨迹,将该运动轨迹转换成多轴运动控制卡的控制指令,并将所述控制指令输出至所述所述多轴运动控制卡;c、薄片成型,多轴运动控制卡控制工作台做X向和Y向运动,同时控制送丝装置将金属丝送至工作台上方正对激光器激装置激光束输出端的位置,激光器装置产生激光束,热熔金属丝前端,形成熔滴并滴落于工作台,所述熔滴在工作台上堆积冷却,并随工作台运动而形成薄片;d、沉积成型,完成薄片的成型后,多 8. Use as claimed in claim one metal laser cladding forming part of laser cladding method according to any one of the molding apparatus of 1~7, characterized in that it comprises the following steps: a, modeling, using CAD software or reverse CAD technology to generate three-dimensional model of the part, using the control software forming the three-dimensional CAD model of the spaced series of parallel cut sheet, the sheet layers to obtain contour data; B, command conversion, based on the contour data of each layer of the design sheet table trajectory, the trajectory is converted to multi-axis motion control card control instruction, and outputs the control command to the multi-axis motion control card; C, sheet molding, multi-axis motion control card control table do X-and Y-movement, while controlling the wire feeder fed the wire workbench Founder position of the laser beam output of the laser of the laser device, laser device generating a laser beam, hot wire distal end, and dripping droplet formation on the table, the droplet deposited on the cooling table, and form a sheet with the table movement; the d, deposition molding, sheet molding is completed, the multi- 轴运动控制卡控制工作台做Z向运动,向下运动步骤a所述间距的距离,再以步骤c进行下一薄片的成型,并依次完成各层薄片的成型,熔滴堆积冷却沉积成型而制得金属零件。 Axis motion control card to do exercise control table, the downward movement step of a spacing distance Z, and then to step c for forming a next sheet, and in order to complete the layers forming the sheet, droplet deposition bulk molding cooling prepared metal parts.
  9. 9.根据权利要求8所述的一种金属零件的激光熔覆成型方法,其特征在于:所述金属丝采用直径为0. 4mm〜0. 6mm的金属丝。 Laser cladding method according to claim molding metal parts according to claim 8, wherein: the wire is a metal wire with a diameter of 0. 4mm~0 6mm.
  10. 10.根据权利要求9所述的一种金属零件的激光熔覆成型方法,其特征在于:所述步骤c中,送丝装置的送丝速度为10〜40mm/s,所述工作台的X向和Y向运动的移动速度为5〜 30mm/s,所述激光器装置产生激光束的功率为0. 8〜1. 2kw。 10. The laser cladding method of forming metal part according to claim 9, wherein: said step (c), the wire feed speed of wire feed apparatus 10~40mm / s, the X table and Y-movement of the moving speed of 5~ 30mm / s, the laser power of laser beam generating means is 0. 8~1. 2kw.
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