Types of rapid prototyping equipment, what are the rapid prototyping technologies?

1. SLA (Laser Rapid Prototyping), molding material: photosensitive resin;

2. FDM (Melt Stacking Molding), molding materials: ABS, PC, PPSF, etc.;

3. OBJET (high-precision rapid prototyping), similar to SLA molding principle, material: photosensitive resin.

Fourth, vacuum casting, the use of silica gel material to make a macro as a simple mold, small batch pouring molding.

5. Low-pressure perfusion, suitable for the production of large pieces of structural orders.

Rapid prototyping (RP) technology is an advanced manufacturing technology developed in the nineties, and is a key common technology for the development of new products for manufacturing enterprises, which has a positive role in promoting product innovation, shortening the new product development cycle and improving product competitiveness. Since the advent of this technology, it has been widely used in the manufacturing industry of developed countries, and a new technical field has emerged.

Rapid prototyping technology is integrated and developed on the basis of modern CAD cam technology, laser technology, computer numerical control technology, precision servo drive technology and new material technology. Different types of rapid prototyping systems have different forming principles and system characteristics due to the different forming materials used. However, the basic principle is the same, and that is"Layered manufacturing, layered layer by layer", similar to the integration process in mathematics.

Figuratively speaking, a rapid prototyping system is like a machine"Stereoscopic printers"。

Rapid prototyping can directly accept product design (CAD) data without the need to prepare any molds, tools, and fixtures, and quickly manufacture prototypes, molds, or models for new product modifications. Therefore, the popularization and application of RP technology can greatly shorten the development cycle of new products, reduce development costs, and improve development quality. by the traditional"Removal method"to this day"Growth method", from molded manufacturing to moldless manufacturing.

Rapid prototyping is a high-tech manufacturing technology developed in the late 80s and early 90s of the last century, and is a general term for the rapid manufacturing of three-dimensional entities with arbitrary complex shapes directly driven by three-dimensional CAD models. Because it transforms complex 3D manufacturing into a series of 2D manufacturing superimpositions, it can produce almost arbitrary complex parts without molds and tools, greatly improving production efficiency and manufacturing flexibility.

Common rapid prototyping processes include: stereolithography curing molding method, selective laser sintering method, fused deposition molding method, layered solid manufacturing method, and three-dimensional printing method.

An introduction to the basic methods of common rapid prototyping.

Mechanical forming is relatively speaking, what materials are used for molding, metal, plastic, wood, through different materials, in order to determine the processing equipment in this field.

Machining (understood as metal processing) common lathes, milling machines, planers, grinders.

Slow wire (wire cutting), CNC automatic machining center, laser cutting, CNC punching machine.

Mechanical forming: stamping forming, cold roll forming, casting molding, forging forming, etc.

Machining equipment: hot processing, cold processing, special processing, each category has a variety of equipment.

Casting and forging machinery, forming equipment.

Lathes, milling machines and processing equipment.

There are many things made by the rapid prototyping process that cannot be directly used in products or experiments.

For example: SLA - stereolithography molding method, the molded products are easy to absorb water and deform, brittle, low hardness, poor toughness, etc., so they cannot be directly used for testing or display. At present, in the rapid model manufacturing industry, rapid prototyping is only a process, and many processes need to be completed to get the desired product.

The following is an example of the first board model for the production of consumer products such as ABS, PP, PE and PC, such as mobile phone plastic cases

Company A is developing a new mobile phone, which has a plastic chassis, in order to make a prototype to test the performance of the mobile phone and check whether the design of the plastic chassis part is reasonable, when the sample is confirmed to be reasonable, and then make a metal mold (hundreds of thousands to millions of yuan cost), here it is necessary to use rapid model manufacturing.

Step 1, input the 3D drawing of the product into the computer of the SLA machine to produce the prototype.

Step 2, through the grinding and painting process, the prototype to meet the size and meet the real product appearance requirements, such as texture. After this step is completed, the prototype for casting is obtained.

Step 3, put the mold prototype into the appropriate size of the open box to fix, in which it is necessary to determine the parting surface, set up the material inlet, set up the discharge inlet, etc., pour in the fluid silica gel and other processes, and finally make the silicone mold.

Step 4, the silica gel mold after silica gel curing can be cut with a scalpel according to the position of the parting surface, the prototype is taken out, and two halves of silica gel are obtained, and the middle of the two halves of silica gel is exactly the same cavity as the prototype after being closed.

Step 5, put the silicone mold in the 70°C oven to heat, close, fix, seal, etc. After that, it is placed in a vacuum infusion machine, and the polyurethane resin is poured in a highly vacuum state to fill the silica gel model cavity with resin, and then put it in a 70°C oven for a certain period of time (different types of polyurethane resin have different curing temperature and time). After curing, the relevant polyurethane resin can achieve ABS or PP-like properties.

Step 6, open the silicone mold, take out the molded workpiece, and then after the treatment of the pouring port and exhaust port, you can get a product that is exactly the same as the appearance of the prototype.

This product is the final sample that can be used for testing or exhibition, because the polyurethane resin reacts violently in the silicone mold, exothermic, etc., and has a great corrosive effect on the silicone, so a silicone mold can replicate about 15 to 20 products. The cost of silicone casting is higher than the cost of direct CNC processing and then grinding and painting, but silicone casting can do a lot of complex workpieces that cannot be processed by CNC, and can also copy rubber-like products, and the hardness of some rubber-like resins can also be adjusted within a certain range, this rapid prototyping process is mainly used in product research and development.

Features(1) There is no limit to the materials used in the manufacture of prototypes, and all kinds of metallic and non-metallic materials can be used;

2) The replicability and interchangeability of the prototype are high;

3) The manufacturing process is independent of the geometry of the manufactured prototype, which is superior when machining complex surfaces;

4) The processing cycle is short, the cost is low, the cost has nothing to do with the complexity of the product, the general manufacturing cost is reduced by 50%, and the processing cycle is saved by more than 70%;

5) Highly technical integration, which can realize the integration of design and manufacturing;

Rapid prototyping technology, also known as rapid prototyping manufacturing (RPM) technology, was born in the late 80s of the 20th century and is a high-tech manufacturing technology based on the material accumulation method. It integrates mechanical engineering, CAD, reverse engineering technology, layered manufacturing technology, numerical control technology, material science, and laser technology, which can automatically, directly, quickly and accurately transform design ideas into prototypes or directly manufactured parts with certain functions, thus providing an efficient and low-cost means of realization for part prototyping and verification of new design ideas.

.1.Moldless manufacturing, not limited by the complexity of the part, as long as there is 3D data can be made2The machining efficiency is higher than that of traditional machining.

3. The cost of materials is higher.

4. Combined with rapid molding, small batch production can be quickly realized.

1) Low cost, fast manufacturing speed, time-saving, innovation in traditional manufacturing methods.

2) It's good for the environment, why do you say that? Because of the non-contact processing method, there is no problem of residual stress in traditional processing, and there is no cutting, noise, etc.

3) It is suitable for new product development and single-room parts production, and can realize rapid casting and rapid mold manufacturing.

Summary. The characteristics of rapid prototyping equipment at home and abroad are different from the following: 1

The technical level is different: the domestic rapid prototyping technology started late and the technical level is relatively low, while some advanced foreign countries have been in a leading position in this field and have mature technology and experience. 2.

The quality of the equipment is different: foreign rapid prototyping equipment usually has high quality and precision, and can manufacture high-quality parts and models, while domestic rapid prototyping equipment has a certain lack of accuracy and quality. 3.

Different production efficiency: foreign rapid prototyping equipment has high production efficiency, can quickly manufacture a large number of parts and models, and shortens the production cycle, while domestic rapid prototyping equipment has the problem of low production efficiency.

What are the differences in the characteristics of rapid prototyping equipment at home and abroad?

The characteristics of rapid prototyping equipment at home and abroad are different from the following: 1The level of technology is different:

The domestic rapid prototyping technology started late and the technical level is relatively low, while some advanced foreign countries have been in a leading position in this field and have mature technology and experience. 2.The quality of the equipment is different:

Foreign rapid prototyping equipment usually has high quality and precision, and can manufacture high-quality parts and models, while domestic fast prototyping equipment has a certain lack of accuracy and quality. 3.The production efficiency is different:

Foreign rapid prototyping equipment has high production efficiency, can quickly manufacture a large number of parts and models, and shortens the production cycle, while domestic rapid aging forming equipment has the problem of low production efficiency.

4.Different application fields: foreign rapid prototyping equipment is widely used in medicine, aerospace, automobile, manufacturing and other collar cover distribution fields, while domestic rapid prototyping equipment is mostly used in the field of model making and small batch production.

In short, there are certain differences in the characteristics of domestic and foreign rapid prototyping equipment, but with the increasing maturity and development of domestic technology, domestic rapid prototyping equipment will continue to improve its quality and technical level.

Hello. Is there anything else.

No, there is only so much to provide you with at present. Good.

1. A new product development model has been established for the design and development of industrial products. Ability to quickly, directly, and accurately translate design ideas into functional physical models.

2. Application in the field of machinery manufacturing. It is mostly used to manufacture single pieces and small batches of metal parts. Some special complex parts, because only a single piece is produced, or a small batch of less than 50 pieces, can generally be directly formed by RP technology, with low cost and short cycle.

3. Rapid prototyping technology is combined with traditional mold manufacturing technology. The application of rapid prototyping technology in mold manufacturing can be divided into two types: direct mold making orange digging and indirect mold making, direct mold making refers to the use of RP technology to directly stack and manufacture molds, and indirect mold making is to produce rapid prototyping parts first, and then copy the parts to obtain the required molds.

4. Application in the medical field. Based on medical imaging data, RP technology is used to make human organ models, which has great application value for surgery.

5. Application in the field of culture and art. In the field of culture and art, rapid prototyping manufacturing technology is mostly used in art creation, cultural relics reproduction, digital sculpture, etc.

6. Application in the field of aerospace technology. In the aerospace field, aerodynamic ground simulation experiments, i.e., wind tunnel tests, are essential and important for the design of advanced space-to-earth shuttle systems, known as space shuttles.

7. In the application of the home appliance industry, the rapid prototyping system has been popularized and applied to a great extent in the domestic home appliance industry, so that many home appliance enterprises are in the forefront of the country, and they have successively adopted the rapid prototyping system to develop new products.