CN109016697B - 一种泡沫-波纹复合点阵金属夹芯圆锥壳及制备方法 - Google Patents
一种泡沫-波纹复合点阵金属夹芯圆锥壳及制备方法 Download PDFInfo
- Publication number
- CN109016697B CN109016697B CN201810690616.4A CN201810690616A CN109016697B CN 109016697 B CN109016697 B CN 109016697B CN 201810690616 A CN201810690616 A CN 201810690616A CN 109016697 B CN109016697 B CN 109016697B
- Authority
- CN
- China
- Prior art keywords
- conical shell
- corrugated
- foam
- core body
- metal
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 77
- 239000002184 metal Substances 0.000 title claims abstract description 77
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000006260 foam Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000011159 matrix material Substances 0.000 claims abstract description 14
- 239000011148 porous material Substances 0.000 claims abstract description 10
- 239000011162 core material Substances 0.000 claims description 55
- 238000005520 cutting process Methods 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 17
- 238000005516 engineering process Methods 0.000 claims description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000004026 adhesive bonding Methods 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229920007790 polymethacrylimide foam Polymers 0.000 claims description 6
- 238000004381 surface treatment Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000005219 brazing Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007723 die pressing method Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003698 laser cutting Methods 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 241000237942 Conidae Species 0.000 claims 3
- 238000010521 absorption reaction Methods 0.000 description 12
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 229920006934 PMI Polymers 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/012—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/016—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of aluminium or aluminium alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/017—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of aluminium or an aluminium alloy, another layer being formed of an alloy based on a non ferrous metal other than aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/046—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/082—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/162—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1808—Handling of layers or the laminate characterised by the laying up of the layers
- B32B38/1816—Cross feeding of one or more of the layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/04—4 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0242—Acrylic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/04—Inorganic
- B32B2266/045—Metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2597/00—Tubular articles, e.g. hoses, pipes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
一种泡沫‑波纹复合点阵金属夹芯圆锥壳及制备方法,泡沫‑波纹复合点阵金属夹芯圆锥壳包括波纹芯体,波纹芯体为圆锥形金属波纹结构,设置在内圆锥壳和外圆锥壳之间,在波纹芯体、内圆锥壳和外圆锥壳之间孔隙中设置有泡沫填充材料;制备方法是先通过圆锥形波纹模具制备波纹芯体;再制备内圆锥壳和外圆锥壳;将波纹芯体和内圆锥壳、外圆锥壳装配,得到波纹点阵金属夹芯圆锥壳;将泡沫条与波纹点阵金属夹芯圆锥壳进行拼装,得到泡沫‑波纹复合点阵金属夹芯圆锥壳;本发明将泡沫‑波纹复合点阵芯体与夹芯圆锥壳结构结合在一起,缓冲吸收更多的冲击能量。
Description
技术领域
本发明属于夹芯圆锥壳技术领域,特别涉及一种泡沫-波纹复合点阵金属夹芯圆锥壳及制备方法。
背景技术
薄壁圆锥壳,因其高比吸能、高容积效率以及良好的空气动力学特性等优势,广泛应用于化工、航空航天、交通运输及核能设备等诸多民用和国防重要工业领域。相较于圆柱壳,薄壁圆锥壳的轴压特新体现出更为平稳的载荷-位移响应,较低的冲击载荷(峰值载荷),更稳定有效的压溃耗能变形机制(抑制整体Euler屈曲失稳的发生),因而体现出更优越的轴压吸能特性。然而,轴向冲击下薄壁金属圆锥壳的能量耗散通常集中在结构的一个相对狭窄区域,其余部分只发生刚性运动,导致材料塑性变形利用率较低、吸能效率有限。面向航天航空领域,例如深空探测星球软着陆技术,要求着陆器碰撞防护的缓冲装置具有质量小、较高吸能效率、可缓冲较大冲击载荷等诸多特点。针对这一应用背景,设计并制备新型薄壁圆锥壳结构,实现高效缓冲吸能,具有重要现实意义。
近年来,点阵多孔材料以其轻质、高强和耐冲击等优良的结构性能和吸声降噪、高效散热及智能化等多功能特性,成为众多学者和工程技术人员关注的热点。与单层圆锥壳相比,以点阵多孔材料为芯体的夹芯壳有望实现小质量下更高的缓冲吸能效率。
目前还没有将点阵多孔材料用于薄壁圆锥壳的文献公开。
发明内容
为了克服上述现有技术的缺点,本发明的目的在于提供一种泡沫-波纹复合点阵金属夹芯圆锥壳及制备方法,将泡沫-波纹复合点阵芯体与夹芯圆锥壳结构结合在一起,缓冲吸收更多的冲击能量。
为了达到上述目的,本发明采取的技术方案为:
一种泡沫-波纹复合点阵金属夹芯圆锥壳,包括内圆锥壳1、外圆锥壳2、波纹芯体3和泡沫填充材料4,波纹芯体3为圆锥形金属波纹结构,设置在内圆锥壳1和外圆锥壳2之间,在波纹芯体3、内圆锥壳1和外圆锥壳2之间孔隙中设置有泡沫填充材料4,内圆锥壳1、外圆锥壳2、波纹芯体3与泡沫填充材料4连接构成泡沫-波纹复合点阵金属夹芯圆锥壳。
所述波纹芯体3中的波纹单胞,沿环向几何形状相同,且均匀分布,沿轴向有锥度和梯度变化。
所述波纹芯体3的波纹斜板与圆锥壳环向切线夹角为30~60°。
所述内圆锥壳1、外圆锥壳2、波纹芯体3和泡沫芯材料4的锥度相同。
所述波纹芯体3、内圆锥壳2和外圆锥壳1采用铝合金、钛合金或不锈钢制成;泡沫填充材料4是泡沫铝或PMI泡沫。
所述的一种泡沫-波纹复合点阵金属夹芯圆锥壳的制备方法,包括以下步骤:
S1、用线切割机/激光切割机将平整处理后的金属板材切割成扇形平板,然后采用模压折弯技术制成具有梯形平台的金属波纹板;
S2、将步骤S1制备的金属波纹板清洗去除油污和锈迹后,在圆锥形波纹模具上固型,圆锥形波纹模具包括波纹状模具5、钢制棱柱压条6、上压模8和下压模9,通过波纹状磨具5和钢制棱柱压条6将金属波纹板固定在两者之间,通过加盖上压模8和下压模9,并紧固螺栓7施加预压力,实现圆锥形波纹芯体的固型;最后拆卸螺栓7,脱模得到圆锥形波纹芯体3;
S3、将平整过的金属板材切割为扇形,通过表面处理去除油污和锈迹,以金属圆锥壳为模具,在其上覆盖金属板材并连接成一体,脱模分别制成内圆锥壳1和外圆锥壳2;
S4、对步骤S2制备的波纹芯体3和步骤S3制备的内圆锥壳1、外圆锥壳2进行表面处理,去除油污和锈迹后进行装配,得到波纹点阵金属夹芯圆锥壳;
S5、采用线切割技术/热电阻丝线切割技术将块状泡沫铝/PMI泡沫切割成与波纹芯体的孔隙相匹配的具有锥度的泡沫条,与步骤S4的波纹点阵金属夹芯圆锥壳进行拼装,得到泡沫-波纹复合点阵金属夹芯圆锥壳。
所述波纹芯体3、内圆锥壳1和外圆锥壳2采用胶接或焊接方式连接。
所述胶接采用环氧树脂胶作为胶结剂,所述焊接采用真空钎焊方式,真空度为10-2~10-3Pa,以1℃/min速度自室温升温至900℃保温10min~1h后冷却至室温。
所述泡沫条与波纹点阵夹芯圆锥壳采用胶接方式连接。
与现有技术相比,本发明具有以下有益效果:
本发明一种泡沫-波纹复合点阵金属夹芯圆锥壳,波纹芯体中的波纹单胞几何形状相同,沿环向均匀分布,经有限元仿真分析发现,波纹点阵金属夹芯圆锥壳在轴向压缩下,波纹点阵金属夹芯圆锥壳相较于各独立组件具有明显的耦合增强效应,具有更高能量吸收效率和优异的缓冲吸能特性,工艺成熟,便于批量生产,具有广阔的市场前景;其制备方法过程简单,工艺成熟,可进行批量生产。
泡沫-波纹复合点阵金属夹芯圆锥壳相较于波纹点阵金属夹芯圆锥壳和独立的泡沫芯体,泡沫和金属壳之间具有明显的耦合增强效应,能量吸收效率提高近50%,在缓冲吸能方面具有明显优势。
附图说明
图1为本发明的泡沫-波纹复合点阵金属夹芯圆锥壳。
图2为本发明的圆锥形波纹芯体模具。
图3为本发明PMI泡沫-波纹复合点阵金属夹芯圆锥壳及其各独立组件轴向压缩下的载荷-位移曲线。
具体实施方式
下面结合附图及实施例对本发明作进一步详细说明。
参照图1,一种泡沫-波纹复合点阵金属夹芯圆锥壳,包括内圆锥壳1、外圆锥壳2、波纹芯体3和泡沫填充材料4,波纹芯体3为圆锥形金属波纹结构,设置在内圆锥壳1和外圆锥壳2之间,在波纹芯体3、内圆锥壳1和外圆锥壳2之间孔隙中设置有泡沫填充材料4,内圆锥壳1、外圆锥壳2、波纹芯体3与泡沫填充材料4连接构成泡沫-波纹复合点阵金属夹芯圆锥壳。
所述波纹芯体3中的波纹单胞,沿环向几何形状相同,且均匀分布,沿轴向有锥度和梯度变化。
所述波纹芯体3的波纹斜板与圆锥壳环向切线夹角为30~60°。
所述内圆锥壳1、外圆锥壳2、波纹芯体3和泡沫芯材料4的锥度相同。
所述波纹芯体3、内圆锥壳2和外圆锥壳1采用铝合金、钛合金或不锈钢制成;泡沫填充材料4是泡沫铝或PMI泡沫。
所述的一种泡沫-波纹复合点阵金属夹芯圆锥壳的制备方法,包括以下步骤:
S1、用线切割机/激光切割机将平整处理后的金属板材切割成扇形平板,然后采用模压折弯技术制成具有梯形平台的金属波纹板;
S2、将步骤S1制备的扇形金属波纹板清洗去除油污和锈迹后,在圆锥形波纹模具上固型;参照图2,圆锥形波纹模具包括波纹状模具5、钢制棱柱压条6、上压模8和下压模9,通过波纹状磨具5和钢制棱柱压条6将金属波纹板固定在两者之间,通过加盖上压模8和下压模9,并紧固螺栓7施加预压力,实现圆锥形波纹芯体的固型;最后拆卸螺栓7,脱模得到圆锥形波纹芯体3;
S3、将平整过的金属板材切割为扇形,通过表面处理去除油污和锈迹,以金属圆锥壳为模具,在其上覆盖金属板材并连接成一体,脱模分别制成内圆锥壳1和外圆锥壳2;
S4、对步骤S2制备的波纹芯体3和步骤S3制备的内圆锥壳1、外圆锥壳2进行表面处理,去除油污和锈迹后进行装配,得到波纹点阵金属夹芯圆锥壳;
S5、采用线切割技术/热电阻丝线切割技术将块状泡沫铝/PMI泡沫切割成与波纹芯体的孔隙相匹配的具有锥度的泡沫条,与步骤S4的波纹点阵金属夹芯圆锥壳进行拼装,得到泡沫-波纹复合点阵金属夹芯圆锥壳。
所述波纹芯体3、内圆锥壳1和外圆锥壳2采用胶接或焊接方式连接;当波纹芯体3以及内圆锥壳1、外圆锥壳2较薄时,波纹芯体3与内圆锥壳1、外圆锥壳2之间采用环氧树脂胶粘接处理,其界面连接强度高,固化时间短,易于加工,同时胶水固化收缩率小,内应力小;当波纹芯体3以及内圆锥壳1、外圆锥壳2较厚时,波纹芯体3与内圆锥壳1、外圆锥壳2之间使用真空钎焊连接强度高,焊件变形小,可是同焊接多条钎缝,生产效率高。
所述胶接采用环氧树脂胶作为胶结剂,所述焊接采用真空钎焊方式,真空度为10-2~10-3Pa,以1℃/min速度自室温升温至900℃保温10min~1h后冷却至室温。
所述泡沫条与波纹点阵夹芯圆锥壳采用胶接方式连接。
经有限元仿真分析发现,波纹点阵金属夹芯圆锥壳在轴向压缩下,波纹点阵金属夹芯圆锥壳相较于各独立组件具有明显的耦合增强效应。相较于波纹点阵金属夹芯圆锥壳和独立的泡沫芯体,泡沫-波纹复合点阵金属夹芯圆锥壳的泡沫组件和金属壳之间具有明显的耦合增强效应,能量吸收效率提高近50%,在缓冲吸能方面都具有明显优势。
参照图3,图3为PMI泡沫-波纹复合点阵金属夹芯圆锥壳及其各独立组件轴向压缩下的位移载荷曲线,黑色带五角星的实线为泡沫-波纹复合点阵金属夹芯圆锥壳轴向压缩下的载荷位移曲线,黑色带三角形的实线为波纹点阵金属夹芯圆锥壳和独立的等质量等高度泡沫柱体在轴向压缩的载荷位移曲线之和,阴影部分表示波纹点阵金属夹芯圆锥壳和独立的泡沫芯体在轴向压缩下的耦合增强效应。
以上内容仅为说明本发明的技术思想,不能以此限定本发明的保护范围,凡是按照本发明提出的技术思想,在技术方案基础上所做的任何改动,均落入本发明权利要求书的保护范围之内。以上内容仅为说明本发明的技术思想,不能以此限定本发明的保护范围,凡是按照本发明提出的技术思想,在技术方案基础上所做的任何改动,均落入本发明权利要求书的保护范围之内。
Claims (5)
1.一种泡沫-波纹复合点阵金属夹芯圆锥壳,包括内圆锥壳(1)、外圆锥壳(2)、波纹芯体(3)和泡沫填充材料(4),其特征在于:波纹芯体(3)为圆锥形金属波纹结构,设置在内圆锥壳(1)和外圆锥壳(2)之间,在波纹芯体(3)、内圆锥壳(1)和外圆锥壳(2)之间孔隙中设置有泡沫填充材料(4),内圆锥壳(1)、外圆锥壳(2)、波纹芯体(3)与泡沫填充材料(4)连接构成泡沫-波纹复合点阵金属夹芯圆锥壳;
所述波纹芯体(3)中的波纹单胞,沿环向几何形状相同,且均匀分布,沿轴向有锥度和梯度变化;
所述波纹芯体(3)的波纹斜板与圆锥壳环向切线夹角为30~60°;
所述内圆锥壳(1)、外圆锥壳(2)、波纹芯体(3)和泡沫芯材料(4)的锥度相同;
所述波纹芯体(3)、内圆锥壳(2)和外圆锥壳(1)采用铝合金、钛合金或不锈钢制成;泡沫填充材料(4)是泡沫铝或PMI泡沫。
2.根据权利要求1所述的一种泡沫-波纹复合点阵金属夹芯圆锥壳的制备方法,其特征在于,包括以下步骤:
S1、用线切割机/激光切割机将平整处理后的金属板材切割成扇形平板,然后采用模压折弯技术制成具有梯形平台的金属波纹板;
S2、将步骤S1制备的金属波纹板清洗去除油污和锈迹后,在圆锥形波纹模具上固型,圆锥形波纹模具包括波纹状模具(5)、钢制棱柱压条(6)、上压模(8)和下压模(9),通过波纹状磨具(5)和钢制棱柱压条(6)将金属波纹板固定在两者之间,通过加盖上压模(8)和下压模(9),并紧固螺栓(7)施加预压力,实现圆锥形波纹芯体的固型;最后拆卸螺栓(7),脱模得到圆锥形波纹芯体(3);
S3、将平整过的金属板材切割为扇形,通过表面处理去除油污和锈迹,以金属圆锥壳为模具,在其上覆盖金属板材并连接成一体,脱模分别制成内圆锥壳(1)和外圆锥壳(2);
S4、对步骤S2制备的波纹芯体(3)和步骤S3制备的内圆锥壳(1)、外圆锥壳(2)进行表面处理,去除油污和锈迹后进行装配,得到波纹点阵金属夹芯圆锥壳;
S5、采用线切割技术/热电阻丝线切割技术将块状泡沫铝/PMI泡沫切割成与波纹芯体的孔隙相匹配的具有锥度的泡沫条,与步骤S4的波纹点阵金属夹芯圆锥壳进行拼装,得到泡沫-波纹复合点阵金属夹芯圆锥壳。
3.根据权利要求2所述的一种泡沫-波纹复合点阵金属夹芯圆锥壳的制备方法,其特征在于:所述波纹芯体(3)、内圆锥壳(1)和外圆锥壳(2)采用胶接或焊接方式连接。
4.根据权利要求3所述的一种泡沫-波纹复合点阵金属夹芯圆锥壳的制备方法,其特征在于:所述胶接采用环氧树脂胶作为胶结剂,所述焊接采用真空钎焊方式,真空度为10-2~10-3Pa,以1℃/min速度自室温升温至900℃保温10min~1h后冷却至室温。
5.根据权利要求2所述的一种泡沫-波纹复合点阵金属夹芯圆锥壳的制备方法,其特征在于:所述泡沫条与波纹点阵夹芯圆锥壳采用胶接方式连接。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810690616.4A CN109016697B (zh) | 2018-06-28 | 2018-06-28 | 一种泡沫-波纹复合点阵金属夹芯圆锥壳及制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810690616.4A CN109016697B (zh) | 2018-06-28 | 2018-06-28 | 一种泡沫-波纹复合点阵金属夹芯圆锥壳及制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN109016697A CN109016697A (zh) | 2018-12-18 |
CN109016697B true CN109016697B (zh) | 2020-08-14 |
Family
ID=65520737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810690616.4A Active CN109016697B (zh) | 2018-06-28 | 2018-06-28 | 一种泡沫-波纹复合点阵金属夹芯圆锥壳及制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109016697B (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111805170B (zh) * | 2020-05-27 | 2022-05-03 | 南京航空航天大学 | 一种内置泡沫铝的空心点阵结构成形方法 |
CN113459602B (zh) * | 2021-07-07 | 2022-08-02 | 北华航天工业学院 | 一种轻质波纹夹芯型复合材料承力筒 |
CN113858717B (zh) * | 2021-08-30 | 2023-02-28 | 北华航天工业学院 | 一种复合材料点阵夹芯筒形承力结构 |
CN114459306B (zh) * | 2022-01-13 | 2023-01-03 | 北京理工大学 | 一种波纹环形柔性复合防爆装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102416714B (zh) * | 2011-08-16 | 2014-04-23 | 西安交通大学 | 一种点阵金属-泡沫铝复合材料及其制备方法 |
CN107234837B (zh) * | 2017-05-18 | 2020-05-22 | 西安交通大学 | 一种波纹点阵金属夹芯圆柱壳及其制备方法 |
-
2018
- 2018-06-28 CN CN201810690616.4A patent/CN109016697B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN109016697A (zh) | 2018-12-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109016697B (zh) | 一种泡沫-波纹复合点阵金属夹芯圆锥壳及制备方法 | |
CN107234837B (zh) | 一种波纹点阵金属夹芯圆柱壳及其制备方法 | |
CN109094139B (zh) | 一种新构型蜂窝夹层板 | |
CN104175623B (zh) | 一种泡沫铝-波纹板复合夹层板及其制备方法 | |
CN102873165B (zh) | 一种复杂零件小特征部位的冲击液压复合成形工艺 | |
CN107344431A (zh) | 一种蜂窝‑波纹复合点阵夹芯圆柱壳及其制备方法 | |
CN102765225B (zh) | 一种金字塔点阵金属夹层板及其制备方法 | |
CN105799231B (zh) | 相向半球壳体柱胞结构的夹芯复合材料 | |
CN103921494B (zh) | 金属空心球结构夹层板的制造方法 | |
CN106808759A (zh) | 金属波纹‑金属橡胶复合材料及其制备方法 | |
CN110539138B (zh) | 一种铝合金轻量化主动冷却结构蒙皮制备方法 | |
CN102909908B (zh) | 一种金字塔点阵金属-环氧树脂基阻尼复合结构及其制备方法 | |
CN109127773A (zh) | 一种双层梯度波纹点阵金属夹芯圆柱壳及其制备方法 | |
CN108099829B (zh) | 一种功能梯度多胞薄壁管 | |
CN111196063A (zh) | 一种径向负梯度泡沫铝夹芯板及其制备方法 | |
CN104289717A (zh) | 一种多级孔金属纤维烧结板的制作方法 | |
CN106881923B (zh) | 一种复合强化型泡沫金属夹芯板的制备方法 | |
CN110527933B (zh) | 一种钛基复合材料热防护蒙皮结构的制备方法 | |
CN110843710B (zh) | 一种汽车碰撞吸能三明治结构 | |
CN112283277A (zh) | 结构承载与振动控制一体化的复合点阵结构及其制备方法 | |
CN101938041B (zh) | 一种高精度天线反射面面板及其制造方法 | |
CN104948901A (zh) | 具有薄壁金属内衬结构的高温高压气瓶的制造方法 | |
CN104760340A (zh) | 蜂窝铝-环氧树脂复合夹芯板及其制备方法 | |
CN108372393A (zh) | 一种高强吸能蜂窝组合结构及其制备方法 | |
CN107215037A (zh) | 一种金属空心球格栅结构夹层板的制备方法 |
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 |