What are the intrinsic differences and options between 3D Printers and conventional machining?

In today's world of product development and manufacturing, designers and engineers are forced to make major decisions. The past few years have seen the development ofMachining(CNC)? This is a powerful technology that can be used to change physical parts in digital models, and its philosophy, programme, and field of application are very different. This note is a clear indication of the essential differences between the two in the vocabulary of mapping, and the purpose of providing a clear and meaningful decision on the most appropriate technology for the purpose of the program and its functions.

Part I: Philosophical Opposition on the Basis - Toyosha's Opposition to Shrinkage

This is a foundation stone for understanding the difference between the Suberian region and the other regions of the world.

3D Printer (Layer Forming): Its name is commonly known as "Layer" Prospecting. The material (metal powder, resin, Plaschfilaments, etc.) is made of layers of materials (metal powder, resin, Plaschfilaments, etc.), and the micro-accumulation is used to make the "overlay" three-dimensional design, which is similar to the original idea. The "free manufacturing" and other aspects of the study are centred on the geometrical complexity, and they have been influenced by the work of Horton and Nandor.

Machining (manufacturing by reduction): Its essence is "citation calculation". Completely なソリッドピース(金属、プラスチックブロック)からスタートし、切削工具が徐々に余分な部分を取り除き、目的の形状を得る。 Nuclear and Naru examination side is "precision sculpture" de Aり, the shape of the tool and the possibility of akセス to limit the restriction.

This fundamental opposition is the result of the violation of both sides of the coin.

Patent II: Comparison of the depths of multiple dimensions: capacity, content, quality of the game

We would like to compare the following major sub-divisions in a systematic way:

1. Geometric Complexity and Design Freedom

DPRINTEIANG (victory): The revolutionary point of interest is this. Complex internal laning, lightweight construction of the Honeycomb, one-piece Assemblage, Organic Bionic Frames, etc., all of which are impossible in the conventional way, are included in the design, and the shapes that are imaginable are made in practice. Designer has no limitations in reality, and "Designer-led Manufacturing" is possible.

CNC machining (Limitations): Limitations are imposed on the straight line and turn characteristics of the tool. Closed-circuit machining is necessary for direct machining, deep and narrow grooves, complex internal shapes, negative angles of friction, and many other occasions, as well as for special tools such as multiple clamps, and the coaster is not possible. The design is necessary to take into account the "Accessibility" of the tool.

2. Material properties and isotropy

3D Printers (Topics and Opportunities):

The range of materials: ingenious graphics, plastics (nylon, Würthim), light-sensitive resins, metals (chitin, alminium, stainless steel, nylon based alloys), and even cellulose, has been expanding rapidly. However, there are a lot of differences in specific grades and properties (heat treatment, etc.) between the same grades and soluble materials.

Anisotropy: In the case of the laminated layers, the bonding strength between the layers is usually lower than the strength within the layers, and as a result, the orientation of the mechanical properties is not as good as it should be. In this case, it is a problem to consider the high load resistance of the part.

CNC Mashinig (Performance and Reliability)

Materials: General steel and Aluminium kara, high-temperature alloys, chitin alloys, brass, cemented plastic (PEEK, PTFE), etc., and mechanically processed cemented materials, as well as other materials. Standard shapes (plates, rods, and tubes) are used, and it is very easy to establish that they have complete characteristics. Mechanical characteristics (forging, and consolidation) are common, preferred, and equivalent.

Completeness of materials: mechanically processed parts maintain the compact structure and excellent characteristics of the base material.

3. Accuracy, Surface, Details

3D Printer (usually, post-processing is necessary):

Accuracy: Metal printing (SLM/DMLS) is ±0.05 to 0.1mm max. and high precision resin (SLA/DLP) is high. Tadashi, the inch method of leximation and reversal is also available.

Surface: The surface roughness (Ra value) is from several microns to several tens of microns, and the direct state (As-built) is rough, and in many cases, the post-treatment of sandblast, grinding, and chipping is necessary for the use of the product. The following is an example of the necessary post-treatment.

CNC Mashinig (ネイティブ高精度):

Accuracy: Precision Manufacturing of Bentimak. The standard CNC Flatbed machining can easily reach ±0.025mm, and the high precision machining machine can reach ミクロンレベル. Extremely high stability and predictability.

Surface: Mirror finish (Ra < 0.4 μm) is a direct result of microfabrication and machining. CNC is the best choice for high-level applications such as optical parts and silicone parts.

4. Production container structure and economy

3D PRINTING: 1 pièce à tête côtre is the quantity and the relation between the quantity and the amount of amari. The initial cost is mainly for equipment and materials (special powders and resins are expensive). The economic model is "complex or simple, simple or expensive". Optimal:

Complex parts for small roto/mono piis (tool/gold type fee is charged).

Lightweight parts optimised for topography (saving on high value materials).

The ProtoTape for Inspection is designed for high speed calibration.

CNC machining: Costs are composed of "equipment reimbursement + material costs + labour time". The number of units (total of programming and cloning time) has increased, but the number of units per atari has decreased dramatically. The economic model is "simple or safe, complex or high". Memberships are not limited to the following:

Naka・Mass production.

Comparatively simple construction parts.

Excellent surface and precision are necessary and necessary.

5. Manufacturing Spiders and Reed Tables

3D PRINTS: The shaping time is proportional to the volume/height of the pajamas. One of the patches is printed on a film, and the time is variable. A lot of different pairs of parallel production are suitable. In the case of complex patches, the CNC program allows for quick machining.

CNC machining: The machining time is dependent on the amount of material removed and the correct correlation. Small and pure parts can be processed very quickly. It is also necessary to prepare the individual project and tools for the new part, as well as the time for the initial centerpiece application, so that continuous production of the same part can be carried out.

Part 3: Dobu? -Application software to determine the application of the software

Dokoro is superior to Dokoro," he said, "I'd like to ask you about a specific private news item. . The meaning of the following is determined by rojeki:

The geometrical complexity of the parts is adjusted:

The internal structure is unified, the surface is extremely complex, and the shape is optimised for the topography. → 3D Printer is a priority.

What are the regular shapes (planar, cylindrical, and cavities) of the main part? → CNC machining is preferred.

Evaluate the production roto-size and coaster targets:

Is it necessary to have 1 to 100 parts? What are the complex parts? → 3D Printer is economical.

Is it necessary to have more than 500 parts? Is it a pure part? → CNC machining is favoured by one Atari's tool.

Materials and performance elements are confirmed:

Is it necessary to have high strength and tensile strength? Is it necessary to use specific forging greed? → CNC machining is a safe option.

Is it possible to start using a performance data sheet in the form of powder or resin? Are you looking for special alloys/composite materials? → 3D Printer is evaluated.

Precision and surface considerations are taken into account:

Is Ra <1.6μm or ±0.05mm tolerance necessary for elevation and surface? →We are looking forward to CNC machining as a means of post-processing and upgrading of 3D plating.

Functional prototype, internal liner, or general surface elements? → 3D Printing is a straightforward and easy to use unit for post-processing.

PART IV: CONCERNS AND FUTURES - HIBRIDES/MANIAC CHALLENGER TABLE TOP

The most efficient software is the one that can be used in many different ways. HIBLID manufacturing is also available in Torrend:

3D Printer + CNC: 3D Printer is a complex blend of Blanks and Neonet Shape, CNC precision machining, and complex and high precision baranas.

CNC Substrate + 3D Printer Functions: 3D Printer (Example: DED Directed Energy Deposition) is used to add complex functions to the parts and repair worn-out parts.

Conclusion: Replacement or Completion
The 3D Printer and the new CNC Machine are unique in their characteristics, and the 3D Printer has the freedom of design, and the ability to deal with "impossible" shapes and a small number of complex parts, while the CNC Machine guarantees extremely high precision and reliable performance. The CNC machine guarantees extremely high accuracy and reliability, and is capable of efficiently producing "possible" normal parts and medium to large quantities of products.
The ingenious ingenuity is based on the 5 core elements of the project, the shape of the Sunawachi, the material, the size of the rosette, the stitches, and the silicon tiles, and the rationality of the Treadeau. The next page depicts the parts in an illustration and compares them with this memory file. The complex interior and the precise shape of the part are difficult to hold, but the 3D printer and the 5-axis CNC system are provided with a 3D model that can be used to create a wallpaper or a bridge.