CN111655452B - 用耐磨材料制造声学通道的有序网络的方法 - Google Patents
用耐磨材料制造声学通道的有序网络的方法 Download PDFInfo
- Publication number
- CN111655452B CN111655452B CN201880087183.1A CN201880087183A CN111655452B CN 111655452 B CN111655452 B CN 111655452B CN 201880087183 A CN201880087183 A CN 201880087183A CN 111655452 B CN111655452 B CN 111655452B
- Authority
- CN
- China
- Prior art keywords
- filaments
- dimensional scaffold
- superimposed layers
- layer
- turbine engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/227—Driving means
- B29C64/232—Driving means for motion along the axis orthogonal to the plane of a layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/227—Driving means
- B29C64/236—Driving means for motion in a direction within the plane of a layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/314—Preparation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/24—Heat or noise insulation
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/168—Plural layers of different materials, e.g. sandwiches
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/10—Thermosetting resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0001—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular acoustical properties
- B29K2995/0002—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular acoustical properties insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/7504—Turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid Mechanics (AREA)
- Robotics (AREA)
- Composite Materials (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
本发明涉及耐磨涂层的制造方法,其包括在基底(12)上沉积热固性材料的纤丝,同时确保基底与纤丝之间按照预定沉积路径的相对移动,并且固化纤丝,从而创造由三维纤丝叠加层形成的三维支架,给定层的纤丝是不连续的并且与相邻层的纤丝定向不同,以赋予其吸收声波的性能。热固性材料是不含溶剂的触变混合物,其包含聚合物基质和交联剂,聚合物基质与交联剂按照重量比为1:1到2:1之间,其还包含促进流动的组分,通常为占触变混合物总质量5%到15%的矿脂。
Description
背景技术
本发明涉及采用增材制造来制造聚合物材料,具体地为热固性材料部件、金属部件、金属合金部件或陶瓷部件的通用领域,并且更具体地它涉及但不限于,诸如飞行器涡喷发动机的耐磨涡轮发动机的壁涂层的制造。
对机场附近由于飞行器造成的噪声危害进行控制已成为一项公共卫生挑战。甚至对飞行器制造商和机场管理者强制实施了更严格的标准和规定。因此,多年来,建造无声飞行器已经成为了一个强大的卖点。目前,基于亥姆霍兹(Helmholtz)谐振器的原理,飞行器发动机产生的噪声是通过局部反应声学涂层来衰减的,这种涂层允许将发动机的噪声强度降低一个或两个八度以上。这些涂层通常以复合板的形式出现,该复合板由刚性板组成,刚性板与覆盖有穿孔外皮的蜂窝芯材相关联,并且位于机舱或上下游传播通道中。然而,在新一代发动机中(例如在涡轮风扇发动机中),如在UHBR(超高旁路比)技术中,导致大幅减小了可用于声学涂层的区域。
因此,重要的是提出新方法和/或新材料(特别是多孔材料),从而在比当前更大的频率范围内,包括低频时,允许消除或显著降低由飞行器发动机产生的噪声水平,尤其是在其起飞和降落阶段产生的噪声水平,但仍然保持发动机的性能。这就是目前正在寻求新的声学处理表面的原因,这对发动机的其他功能,诸如比燃料消耗影响最小,其构成重要的商业优势。
此外,如今,总体上,习惯于有利地采用增材制造方法代替传统的铸造或机械加工方法,以便方便、快捷和低成本地生产三维复杂零件。航空领域特别适合使用这些方法。其中,可以引用线束沉积方法。
发明内容
因此,本发明的目的在于提供一种形成新材料的方法,以显著减小飞行器涡轮喷气发动机产生的噪声。控制材料参数允许从低频到高频的延伸范围内减小噪声。源自该方法的产品旨在被装配在与流体流动接触的涡轮喷气发动机的壁上,更具体地说,是用于代替风扇外壳的耐磨芯材。
为此,提出了一种耐磨涂层的制造方法,其包括在基底表面上沉积热固性材料的纤丝,同时提供在所述基底和所述纤丝之间沿预定沉积路径的相对位移,并固化所述纤丝,以创造纤丝三维支架,三维支架包括叠加层,叠加层中给定层的纤丝是不连续的,并且其可以被定向不同于相邻层的纤丝的定向,从而赋予其吸收声波的性能,其特征在于,所述热固性材料是不含溶剂的触变混合物,并且包含聚合物基质和交联剂,所述聚合物基质相对所述交联剂的重量比位于1:1和2:1之间,还包含流动组分,通常为重量占所述触变混合物总重量5%~15%之间的矿脂。
因此,可以获得具有规则和有序孔隙率的多孔微观结构,其通过通道内的粘性热耗散,确保大量吸收声波,并且由于构成通道的材料而保持其耐磨性。
优选地,所述触变混合物通过所述组分在锥形挤压螺杆中的共同挤压而获得,并通过具有校准尺寸和形状的喷嘴沉积在所述基底表面上,喷嘴的出口端截面的主体宽度小于250微米。
有利地,通过计算机控制的具有至少三轴的机器或机器人,使所述基底和所述柱状纤丝产生相对位移,通过安装在所述校准喷嘴的出口端的加热元件固化所述柱状纤丝。
根据所考虑到的实施方式,所述三维支架可以包括:
给定层的纤丝交替定向为0°或90°的叠加层,在相同方向的叠加纤丝中没有偏移;
给定层的纤丝交替定向为0°或90°的叠加层,在相同方向的叠加纤丝中具有偏移;
每一层i具有以位于20°到40°之间,通常为30°的相同偏差角度进行偏移的纤丝定向方向Di的叠加层;
或者,每一层的纤丝具有定向为0°和90°纤丝的叠加层,以在纤丝之间形成方形截面的垂直通孔;
本发明还涉及由上述制造方法得到的耐磨涡轮发动机的壁涂层。
附图说明
通过下面给出的详细描述,并参考相应的没有任何限制性特征的附图,将示出本发明的其他特点和优点。其中:
图1示出了本发明的耐磨材料纤丝三维支架组件的爆炸图;
图2所示为用于生产图1中三维支架的纤丝沉积系统;
图3A到3D示出了具有声学性能的三维支架的四个示例。
具体实施方式
本发明的方法允许在基底上打印耐磨材料,其目的是创造出纤丝三维支架,在纤丝之间形成具有声学特性的有序阵列的通道。
耐磨材料是指材料在与面对的部件接触的作业过程中分裂(或腐蚀)的能力(剪切的低抗性)及其在作业过程中对其吸入的颗粒或异物撞击后的其耐磨性(损害了耐磨性)。这类型的材料必须也保持,甚至利于良好的空气动力学性能(粗糙度标准:表面状态为Ra),具有足够的耐氧化性和耐腐蚀性,并且具有与其所沉积的层或基底相同数量级的热膨胀系数。
图1示出了本发明的由纤丝100、200、300形成的三维支架10的一部分的爆炸图,纤丝有利地为柱状,其采用耐磨材料制成,其允许产生有序阵列性质的涂层,以赋予待接收该涂层的壁(基底)12声学特性。根据所考虑的阵列配置,通道之间的互连可以通过规则的方式存在于用于产生这些不同通道的不同耐磨材料层的叠加期间。非限制性地,该壁优选地是涡轮发动机,如飞行器涡轮喷气发动机的壁,更具体地是位于风扇叶片外围,通常用于容纳耐磨芯材的3D编织复合壳体。
这类型的有序阵列的打印采用以下参照图2描述方法的增材制造来实施。该打印要求允许控制耐磨材料沉积的精确设备,以保证最终的尺寸公差。为实现该目的,必须具有来自Aerotech公司的至少一台ABG10000型号的3轴机器,或者具有精确“数字轴”(定位在5微米量级)的机器人,允许通过内嵌程序,根据用户定义的沉积路径控制打印。因此,借助该设备,通过控制打印参数,如材料流速、打印的位移位置和速度,可以保证在预定三维空间中纤丝的精确沉积。
如图2所示,纤丝沉积系统,具有至少3轴的机器或机器人20优选地通过连接系统内的压力和温度控制电路进行沉积。耐磨材料通过喷嘴22挤压,具有校准的形状和尺寸,首先沉积在基底12上,然后连续地沉积在形成的不同的叠加层上,直到获得所需的厚度。纤丝沉积系统沿着其所连接的电脑(计算机或微控制器24)控制的沉积路径,提供纤丝沉积系统的控制,并在待处理表面的每一点监控为确保理想耐磨性必要的纤丝布置和中间体的孔隙率。
耐磨材料的供应通过锥形挤压螺杆26提供,其允许混合几种组分,形成具有糊状外观的触变混合物。锥形挤压螺杆包括用于同时引入至少两种组分的至少两个分离的输入端26A、26B,以确保在整个沉积操作过程中各组分的充分均匀混合,从而最终获得具有高粘度的流体材料,该流体材料将通过喷嘴22沉积,喷嘴的出口端横截面的主体宽度小于250微米。在此操作中,必须避免气泡的产生,因为其会在打印过程中在纤丝中形成许多缺陷,因此,有必要在控制喷嘴的压力及其位移速度的同时非常渐进地推动材料,以便获得截面均匀、顺位性好的纤丝。需要说明的是,可以通过控制引入到锥形挤压螺杆中的组分来改变沉积材料的结构成分。
可以在喷嘴22的出口端安装加热灯28或任何类似装置来在沉积过程中稳定沉积材料并避免蠕变。耐磨材料的沉积一直进行直到达到指定厚度。为加快材料沉积,纤丝沉积系统20可以包括几个独立调节的喷嘴或包括在US2017/203566中描述的具有校准直径的多喷嘴结构。
耐磨材料在其厚度或表面上进行的受控沉积,允许耐磨材料的功能化,特别是赋予其声学特性。
为实现该目的,有序阵列的通道优选地,为具有图3A、3B、3C和3D中所示的一种配置的支架,即:
在图3A中,纤丝100、200形成的三维支架包括给定层的纤丝交替定向为0°和90°的叠加层,在同一方向上的纤丝的叠加没有偏移。
在图3B中,纤丝100、200形成的三维支架包括给定层的纤丝定向为0°或90°的叠加层,相同方向上的纤丝叠加具有偏移。该偏移优选地,如图所示,等于两纤丝之间距离的一半。
需要说明的是,对于这两种配置,两纤丝方向之间的角度偏差可以是不同的,并且可以小于90°,如45°。
在图3C中,纤丝100、200、300、400、500、600形成的三维支架包括每层i(i包括1~6之间,每层角度偏差30°)以相同偏差角度偏移的纤丝定向方向Di的叠加层,偏差角度介于20°和40°之间,通常为30°。
在图3D中,纤丝100、200形成的三维支架包括每层都均有0°和90°定向的纤丝的叠加层,从而在纤丝之间形成具有方形截面的垂直孔700。这四种配置中的每一种中,理想的孔隙率(空隙百分比)通常大于60%。
在具有这些不同结构的壳体扇区上进行打印,已显示出根据上述增材制造方法自动沉积此类耐磨材料的可行性。还进行了压缩和弯曲机械性能的测试,还对样品进行了用于低能量的撞击测试或用于在法向入射的声阻抗表征。
特别地,已经观察到通过支架的声能传送以及通过改变空气声源一部分这种声能的吸收或传播声波的吸收。
由校准喷嘴挤压的耐磨材料有利地为不含溶剂的具有高粘度的热固性材料(也称为流体),因为,众所周知,溶剂的蒸发会产生强烈的收缩。该材料优选地为动力学上缓慢聚合并且具有稳定丝状流动的树脂,其以触变混合物的形式出现,因此其优势在于,基底上的打印(在材料刚挤压后)和最终(一旦完成加热和聚合后)结构之间的更少的收缩率。
本方法的上下文中所使用的耐磨材料的一个示例是以糊状形式呈现的由三种组分组成的材料,即聚合物基质,如环氧树脂(具有蓝色造型的糊状外观)、交联剂或促进剂(呈现为白色造型的糊状)和半透明的矿脂(如vaselineTM)。所述促进剂/基质组分配比为:基质相对促进剂的重量比为1:1到2:1之间,矿脂重量占材料总重量5%~15%(通常为10%)。基质还可以包括具有预定直径的中空玻璃微球,以确保理想的孔隙率,同时允许增加打印的支架的机械性能。引入矿脂的价值在于,降低树脂的粘度和耐磨材料的反应动力学,使其在打印过程中粘度更加稳定。(粘度与确保充分挤压速度以维持打印质量的所需挤压压力直接相关)。
例如,2:1比例的该类耐磨材料包含0.7g促进剂和1.4g基质,在其中添加0.2g的矿脂是合适的。
因此,本发明允许快速(30mm/s)和稳定地打印,并允许再现受控的具有小纤丝尺寸(直径<250微米)和减轻重量(改善的空隙率>60%)的性能优良的声学结构(粗糙度、外观、孔口率),考虑到航空中遇到的强应力,其具有特别的价值。
Claims (10)
1.耐磨涂层的制造方法,其包括在涡轮发动机的壁上沉积热固性材料纤丝,同时提供沿预定沉积路径的所述涡轮发动机的壁和所述纤丝之间的相对位移,并固化所述纤丝,以创造纤丝三维支架,三维支架包括叠加层,叠加层中给定层的纤丝是不连续的,并且其被定向不同于相邻层纤丝的定向方向,从而赋予其吸收声波的性能,其中,所述热固性材料是不含溶剂的触变混合物,包含聚合物基质和交联剂,所述聚合物基质和交联剂的重量比介于1:1到2:1之间,该热固性材料还包含流动组分,其为重量占所述触变混合物总重量5%到15%的矿脂。
2.根据权利要求1的制造方法,其中,所述触变混合物通过将所述组分通过锥形挤压螺杆共挤压而获得,并通过具有校准形状和直径的喷嘴沉积到所述涡轮发动机的壁,所述喷嘴的出口端截面尺寸的主体宽度小于250微米。
3.根据权利要求1的制造方法,其中,所述涡轮发动机的壁和所述纤丝的相对位移通过计算机控制的具有至少三轴的机器或机器人来实现。
4.根据权利要求1的制造方法,其中,所述纤丝的固化通过安装在所述校准喷嘴的出口端的加热元件来实现。
5.根据权利要求1的制造方法,其中,所述纤丝的三维支架包括给定层的纤丝交替定向为0°或90°的叠加层,相同方向的纤丝叠加没有偏移。
6.根据权利要求1的制造方法,其中,所述纤丝的三维支架包括给定层的纤丝交替定向为0°或90°的叠加层,相同方向的纤丝叠加中具有偏移。
7.根据权利要求1的制造方法,其中,所述纤丝的三维支架包括在每层i具有相同角度偏差,包括在20°到40°之间的纤丝偏移的定向方向Di的纤丝叠加层。
8.根据权利要求7的制造方法,其中,所述纤丝的三维支架包括在每层i具有相同角度偏差,包括30°的纤丝偏移的定向方向Di的纤丝叠加层。
9.根据权利要求1的制造方法,其中,所述纤丝三维支架包括每层均具有定向为0°和90°的纤丝的纤丝叠加层,从而在纤丝之间形成方形截面的垂直通孔。
10.耐磨涡轮发动机的壁涂层,其通过权利要求1到9任一项的制造方法获得。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2,988,223 | 2017-12-06 | ||
FR1761716 | 2017-12-06 | ||
FR1761716A FR3074444A1 (fr) | 2017-12-06 | 2017-12-06 | Procede de fabrication d'un reseau ordonne de canaux acoustiques en materiau abradable |
CA2988223A CA2988223A1 (fr) | 2017-12-06 | 2017-12-06 | Procede de fabrication d'un reseau ordonne de canaux acoustiques en materiau abradable |
PCT/FR2018/053134 WO2019110939A1 (fr) | 2017-12-06 | 2018-12-06 | Procédé de fabrication d'un réseau ordonne de canaux acoustiques en matériau abradable |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111655452A CN111655452A (zh) | 2020-09-11 |
CN111655452B true CN111655452B (zh) | 2023-01-17 |
Family
ID=64755585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201880087183.1A Active CN111655452B (zh) | 2017-12-06 | 2018-12-06 | 用耐磨材料制造声学通道的有序网络的方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11478981B2 (zh) |
EP (1) | EP3721067B1 (zh) |
JP (1) | JP7304858B2 (zh) |
CN (1) | CN111655452B (zh) |
WO (1) | WO2019110939A1 (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11712496B2 (en) * | 2017-10-27 | 2023-08-01 | University Of Cincinnati | Microspheres containing decellularized donor tissue and their use in fabricating polymeric structures |
US11034460B2 (en) * | 2017-12-08 | 2021-06-15 | The Boeing Company | Additively manufactured septa for acoustic panels |
FR3099963A1 (fr) * | 2019-08-13 | 2021-02-19 | Airbus Operations | Elément acoustique à double enceinte et encombrement réduit, en particulier pour panneau acoustique d’aéronef |
DE102020101904A1 (de) | 2020-01-27 | 2021-07-29 | Röchling Automotive SE & Co. KG | Verfahren zur Herstellung eines Luftkanalbauteils mit einem additiven Herstellungsverfahren unter Veränderung wenigstens eines Prozessparameters während der Verfahrensausführung und derartiges Luftkanalbauteil |
CA3099219A1 (fr) * | 2020-11-13 | 2022-05-13 | Safran Aircraft Engines | Materiau poreux multicouches pour traitement acoustique |
KR102619479B1 (ko) * | 2020-11-22 | 2024-01-02 | 매시빗 3디 프린팅 테크놀로지스 리미티드 | 복합 재료로부터 3d 물체의 자동화된 제조 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2484350B (en) * | 2010-10-08 | 2013-06-05 | Gkn Aerospace Services Ltd | Advanced fibre placement lay-up |
CN105431286A (zh) * | 2013-07-29 | 2016-03-23 | 波音公司 | 具有通过受控纤维铺放生产的孔图案的复合材料层压板 |
CN107405829A (zh) * | 2014-11-27 | 2017-11-28 | 佐治亚-太平洋化工品有限公司 | 用于添加制造中的材料挤出工艺中的触变性热固性树脂 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2870778B2 (ja) * | 1989-01-25 | 1999-03-17 | 石川島播磨重工業株式会社 | ガスタービンのシュラウド構造 |
TR199901328T2 (xx) * | 1996-12-13 | 2002-04-22 | Japon Absorbent Technology Institute | Y�ksek emi� g�c�ne sahip kompozit ve bunun yap�m�. |
JP4028923B2 (ja) * | 1997-12-10 | 2008-01-09 | 株式会社協立 | 滑り部材付きターボチャージャ |
US8046915B2 (en) * | 2007-12-12 | 2011-11-01 | General Electric Company | Methods for making composite containment casings |
FR2953058B1 (fr) * | 2009-11-23 | 2017-11-03 | Aircelle Sa | Peau acoustique pour un panneau acoustique d'une nacelle d'aeronef |
US9643358B2 (en) | 2011-07-01 | 2017-05-09 | The Board Of Trustees Of The University Of Illinois | Multinozzle deposition system for direct write applications |
US20130323473A1 (en) * | 2012-05-30 | 2013-12-05 | General Electric Company | Secondary structures for aircraft engines and processes therefor |
WO2015120429A1 (en) * | 2014-02-10 | 2015-08-13 | President And Fellows Of Harvard College | Three-dimensional (3d) printed composite structure and 3d printable composite ink formulation |
CN107249864B (zh) * | 2014-12-12 | 2019-09-27 | 尤利卡特基金会 | 用于制造由复合材料制成的零件的方法和系统及由此获得的零件 |
CN107250552B (zh) * | 2015-02-27 | 2020-02-14 | 三菱重工发动机和增压器株式会社 | 增压器的制造方法 |
CN106228969A (zh) * | 2016-09-19 | 2016-12-14 | 四川大学 | 一种三维局域共振声子晶体结构及制备方法 |
CN106863848B (zh) * | 2017-02-17 | 2019-10-01 | 南京航空航天大学 | 航空发动机的复合材料叶片的成型方法 |
CN206703520U (zh) * | 2017-03-23 | 2017-12-05 | 湖北工业大学 | 一种线阵喷射式fdm三维打印喷头 |
GB201811549D0 (en) * | 2018-07-13 | 2018-08-29 | Rolls Royce Plc | Fan blade containment |
-
2018
- 2018-12-06 CN CN201880087183.1A patent/CN111655452B/zh active Active
- 2018-12-06 US US16/770,323 patent/US11478981B2/en active Active
- 2018-12-06 WO PCT/FR2018/053134 patent/WO2019110939A1/fr unknown
- 2018-12-06 JP JP2020531084A patent/JP7304858B2/ja active Active
- 2018-12-06 EP EP18825764.6A patent/EP3721067B1/fr active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2484350B (en) * | 2010-10-08 | 2013-06-05 | Gkn Aerospace Services Ltd | Advanced fibre placement lay-up |
CN105431286A (zh) * | 2013-07-29 | 2016-03-23 | 波音公司 | 具有通过受控纤维铺放生产的孔图案的复合材料层压板 |
CN107405829A (zh) * | 2014-11-27 | 2017-11-28 | 佐治亚-太平洋化工品有限公司 | 用于添加制造中的材料挤出工艺中的触变性热固性树脂 |
Also Published As
Publication number | Publication date |
---|---|
US20200353673A1 (en) | 2020-11-12 |
WO2019110939A1 (fr) | 2019-06-13 |
US11478981B2 (en) | 2022-10-25 |
EP3721067B1 (fr) | 2023-09-27 |
EP3721067A1 (fr) | 2020-10-14 |
CN111655452A (zh) | 2020-09-11 |
JP7304858B2 (ja) | 2023-07-07 |
JP2021505444A (ja) | 2021-02-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111655452B (zh) | 用耐磨材料制造声学通道的有序网络的方法 | |
US11667084B2 (en) | Method for producing an ordered array of interconnected acoustic microchannels | |
CN111542435B (zh) | 用于在涡轮发动机壳体上原位增材制造涂层的方法 | |
BRPI0708484A2 (pt) | processo para reparar e restaurar componentes dinamicamente tensionados compreeendidos ligas de alumìnio para aplicações em aeronave | |
US20090188748A1 (en) | Noise suppression panels and repair methods therefor | |
CN111511540B (zh) | 用于涡轮发动机内壁的具有特性梯度的涂层 | |
RU2780516C2 (ru) | Способ аддитивного изготовления на месте покрытия на корпусе турбомашины | |
Anderson et al. | Noise reduction by interaction of flexible filaments with an underexpanded supersonic jet | |
Chauvette et al. | Non‐Planar Multiprocess Additive Manufacturing of Multifunctional Composites | |
FR3074444A1 (fr) | Procede de fabrication d'un reseau ordonne de canaux acoustiques en materiau abradable | |
CN115710684B (zh) | 一种基于骨架组分颗粒弱连接剥离磨耗机制设计的封严涂层及其制备方法 | |
CA2988224A1 (fr) | Revetement a gradient de propriete pour paroi interne de turbomachine | |
FR3074448A1 (fr) | Revetement a gradient de propriete pour paroi interne de turbomachine | |
FR3074445A1 (fr) | Procede de fabrication additive in situ d'un revetement sur un carter de turbomachine | |
Brzeski | Development of Thermosetting Composite Materials for Producing Multifunctional Coatings by Direct Ink Writing | |
CA2988229A1 (fr) | Procede de fabrication additive in situ d'un revetement sur un carter de turbomachine | |
CA2988222A1 (fr) | Procede de fabrication d'un reseau ordonne de micro-canaux acoustiques interconnectes |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |