3D printing supporting structure for metal additive manufacturing
The honeycomb support structure solves the problem of insufficient support in 3D printing of metal parts, improves support strength and stability, reduces material consumption, and ensures printing accuracy and heat dissipation performance.
Patent Information
- Application Number
- CN202520405915.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-10
AI Technical Summary
In existing 3D printing of metal parts, the tree-shaped support structure lacks sufficient strength and stability, leading to deformation or collapse of the parts and affecting the quality and precision of the finished product.
A honeycomb support structure is adopted, including a first connecting layer, a second connecting layer, and a third connecting layer. The support components are made of the same material as the printed parts, and honeycomb holes are opened. The support components are evenly distributed to provide stable support and optimize material utilization.
It improves the strength and stability of the support components, prevents parts from deforming or collapsing, reduces material consumption, has good heat dissipation performance, and ensures printing accuracy.
Smart Images
Figure CN223801551U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to 3D printing support field, more specifically, relate to a 3D printing support structure for metal additive manufacturing. BACKGROUND
[0002] In the 3D printing process of metal parts, the support structure has been the key factor influencing the printing quality and efficiency, the market usually uses the tree support structure, however, these tree structures have obvious shortcomings, in the strength and stability, the tree support structure often cannot provide enough support, the branches of the tree structure are relatively thin in some areas, it is difficult to stably bear the weight of the metal parts in the printing process, when printing the metal parts of complex shape, often because of insufficient support, the parts deform even collapse in the printing process, seriously affect the finished product quality and precision of the parts, lead to a large number of printing task failures, cause the waste of materials and time.
[0003] Therefore, aiming at the above problems, a 3D printing support structure for metal additive manufacturing is provided. UTILITY MODEL CONTENT
[0004] 1. Technical problem to be solved
[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a 3D printing support structure for metal additive manufacturing to solve the problems raised in the background art.
[0006] 2. Technical scheme
[0007] In order to solve the above problems, the utility model adopts the following technical scheme.
[0008] A kind of 3D printing support structure for metal additive manufacturing, including processing table and printing part, the support piece is arranged between the printing part and processing table, the support piece is equidistantly distributed between processing table and printing part, and it is circular array with printing part as center;The material of the support piece and the printing part is same.
[0009] Further, the support piece includes a first connecting layer, a second connecting layer and a third connecting layer;The material of the first connecting layer, the second connecting layer and the third connecting layer is same with the printing part.
[0010] Further, the third connecting layer is connected by the first connecting layer, the third connecting layer is connected below the printing part, and the third connecting layer is in strip shape.
[0011] Further, the support piece is connected with the processing table by the second connecting layer.
[0012] Further, the support piece is provided with honeycomb hole, and the six internal angles of the honeycomb hole are all 120 degrees.
[0013] 3. Benefits
[0014] Compared with the prior art, the utility model has the advantages that:
[0015] In the scheme, the honeycomb structure greatly improves the overall strength and stability of the support piece, ensures that the weight of the metal part can be stably borne in the printing process, effectively avoids part deformation or collapse caused by insufficient support, on the other hand, the honeycomb structure realizes the optimized use of materials while ensuring the support performance, reduces the weight of the support piece itself, reduces the consumption of printing materials, in addition, the structure also has good heat dissipation performance, which is beneficial to dissipating the heat generated by material melting and deposition in time in the printing process. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is a three-dimensional structure schematic view of the utility model;
[0017] Fig. 2 It is a structure schematic view of the support piece in the utility model;
[0018] Explanation of reference numerals in the drawing:
[0019] 1, processing table; 2, print part; 3, support piece; 4, first connecting layer; 5, second connecting layer; 6, honeycomb hole; 7, third connecting layer. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0021] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawing, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0022] In the description of the utility model, it is necessary to explain that, unless there are explicit provisions and limitations, the terms "mount", "set", "sleeve / interface", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according of the specific circumstances.
[0023] Embodiment:
[0024] Please refer to Figs. 1-2 A 3D printing support structure for metal additive manufacturing, comprising a machining table 1 and a printed part 2, a support 3 is arranged between the printed part 2 and the machining table 1, the support 3 is equidistantly distributed between the machining table 1 and the printed part 2, and is arranged in a circular array with the printed part 2 as the center; the material of the support 3 is the same as that of the printed part 2, in the scheme, the support 3 is equidistantly distributed in a circular array between the machining table 1 and the printed part 2, can bear the gravity of the printed part 2 in all directions, especially for parts with complex shapes, such as parts with cantilever, thin wall or internal hollow structure, without the support 3, these parts are prone to deformation or collapse due to gravity during printing, the support 3 uniformly disperses the gravity of the part to the machining table 1 through its own structure, ensures that the part maintains the correct shape during layer-by-layer printing, and guarantees the printing precision.
[0025] Please refer to Figs. 1-2 The support 3 comprises a first connecting layer 4, a second connecting layer 5 and a third connecting layer 7; the first connecting layer 4, the second connecting layer 5 and the third connecting layer 7 are the same as the material of the printed part 2, in the scheme, in metal additive manufacturing, when printing high-precision and high-performance parts in the field of aerospace, using the support structure of the same metal material can ensure that the support structure and the part are consistent in physical properties such as thermal expansion coefficient, reduce the problem of different thermal stress synchronization caused by material difference, thereby effectively reducing the risk of deformation or crack of the part due to thermal stress concentration during printing, and the combined part of the support structure and the part is easier to process after printing, and is convenient for unified smelting and reuse during recycling.
[0026] Please refer to Figs. 1-2 The third connecting layer 7 is connected through the first connecting layer 4, the third connecting layer 7 is connected below the printed part 2, and the third connecting layer 7 is in strip shape, in the scheme, the third connecting layer 7 is connected below the printed part 2 and is in strip shape, and the length and width thereof are customized designed according to the contour of the supporting area below the printed part 2, so as to ensure to provide accurate support for the printed part 2.
[0027] Please refer toFigs. 1-2 The support 3 is connected with the processing table 1 through the second connecting layer 5, so as to facilitate the removal of the support 3 from the processing table 1 after the printing is completed.
[0028] Please refer to Figs. 1-2 The support 3 is provided with a honeycomb hole 6, and the six internal angles of the honeycomb hole 6 are all 120 degrees. In the present scheme, the regular hexagonal structure of the honeycomb hole 6 greatly increases the internal surface area of the support 3, provides more paths for heat transfer compared with the solid structure, and significantly enhances the heat dissipation capacity.
[0029] Working principle: when performing 3D printing of metal parts, the 3D printer follows a rigorous and orderly work flow. At the beginning of the work, the 3D printer will start to build the corresponding support 3 according to the model data imported in advance and accurately analyzed, according to the complex shape of the metal part to be printed, on the flat surface of the processing table 1, with high precision and positioning accuracy. These supports 3 adopt a unique honeycomb structure to provide a stable and reliable support basis for the subsequent printed metal parts.
[0030] The honeycomb support 3 is composed of a large number of closely arranged and regularly shaped hexagonal units. This ingenious geometric design has many advantages. On the one hand, the honeycomb structure greatly improves the overall strength and stability of the support 3, ensuring that it can stably bear the weight of the metal part during printing, effectively avoiding part deformation or collapse due to insufficient support. On the other hand, the honeycomb structure cleverly realizes the optimized use of materials while ensuring the support performance, reducing the weight of the support 3 itself and reducing the consumption of printing materials. In addition, this structure also has good heat dissipation performance, which is conducive to dissipating the heat generated during material melting and deposition in a timely manner during printing, ensuring the stability of the printing process. The printing material of the support 3 is usually selected to be compatible with the metal part, which can ensure sufficient strength to bear the weight of the part during printing and can be relatively easily separated from the part during subsequent processing.
[0031] After completing the printing process of the support 3, the 3D printer will accurately position the printing nozzle above the support 3, and start to layer by layer accumulate the metal part to be printed according to the predetermined printing path and parameters. During the printing process, the metal material in the form of tiny particles or filaments rapidly melts and accurately deposits at the designated position under the action of high temperature.
[0032] After the finished product is printed, the worker only needs to wait for cooling, then uses a vice or other tools to separate the support 3 from the finished product, and then polishes the finished product.
[0033] The above merely describes a preferred embodiment of the present application; the scope of protection of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and improvement concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the scope of protection of the present application.
Claims
1. A 3D printing support structure for metal additive manufacturing, comprising a machining table (1) and a printed part (2), characterized in that: Supporting pieces (3) are arranged between the printed part (2) and the machining table (1), the supporting pieces (3) are equidistantly distributed between the machining table (1) and the printed part (2) and are arranged in a circular array with the printed part (2) as the center, and the supporting pieces (3) are made of the same material as the printed part (2).
2. The 3D printing support structure for metal additive manufacturing according to claim 1, characterized in that: The supporting pieces (3) comprise a first connecting layer (4), a second connecting layer (5) and a third connecting layer (7), and the first connecting layer (4), the second connecting layer (5) and the third connecting layer (7) are made of the same material as the printed part (2).
3. The 3D printing support structure for metal additive manufacturing according to claim 2, characterized in that: The third connecting layer (7) is connected through the first connecting layer (4), the third connecting layer (7) is connected below the printed part (2), and the third connecting layer (7) is in a strip shape.
4. The 3D printing support structure for metal additive manufacturing according to claim 1, characterized in that: The supporting pieces (3) are connected with the machining table (1) through the second connecting layer (5).
5. The 3D printing support structure for metal additive manufacturing according to claim 1, characterized in that: The supporting pieces (3) are provided with honeycomb holes (6), and six inner angles of the honeycomb holes (6) are all 120 degrees.