Vacuum Mould Casting Process and Benefits of the Process

Casting, in itself, is a relatively simple process. You have a basic mould in which you pour liquid polymer or something like plaster of Paris or molten metal and allow it to set. The mould may then be broken or removed. There are several ways one can cast material such as sand box casting and investment casting. Each has its pros and cons. Better techniques such as investment casting and vacuum mould casting result in products with nil or fewer defects such as pin holes and blow holes. While investment casting is used on a production scale, vacuum casting can be used for prototyping, for producing smaller number of parts or for commercial manufacturing.

The Process

Vacuum casting can be used to cast metal. The vacuum mould casting process can also be used for casting polymer resin parts. Metal casting is relatively simple. A pattern is made of wood and then used to create a sand mould in a mould box. The mould box with sand is placed inside a sealed chamber with facilities to draw out air through a vacuum pump and molten metal is poured in the mould. This results in casting with virtually no blow holes. Polymer vacuum casting follows a similar process. A master model is made using 3D printing or CNC machining. This is then coated with silicone rubber resin and cured at high temperature. The mould coating of cured silicone is cut into two sections. This is used as the mould for vacuum mould casting of polymers, usually polyurethane being the material of choice for industrial purposes.

This silicone mould in two parts is joined together and it is suspended inside the vacuum chamber where a vacuum is created and polyurethane resin is injected into the mould and cured at high temperature. Silicone material may deteriorate after a few such pieces have been taken out and the mould may need to be made all over again from the master model.

Advantages of Vacuum Moulding

One of the chief advantages of vacuum moulding is that air is completely evacuated from within the chamber so the cast pieces do not have any pinholes or blowholes inside that mar the look and affect the structural strength.

Another advantage of Binashree vacuum mould casting is that one can easily and quickly manufacture components that are required in small quantity. It saves time and money too.

Prototypes can be developed cheaply and quickly and be evaluated and the component design further refined before going in for more traditional bulk manufacturing methods.

It is easy to create parts with thinner wall thicknesses and quite complicated shapes that may not be possible with other processes or if done, may be quite expensive and time consuming.

Some products are sold in low quantities such as medical prosthetics or decorative objects and for such items, this is the best solution.

Binashree is one of the few companies with expertise in delivering high quality vacuum moulded products for a variety of end uses.

Blog Source : https://binashree.wordpress.com/2018/08/29/vacuum-mould-casting-process-and-benefits-of-the-process/

Development 3D Printing Manufacturing Service Provider

3D printing is a boon to manufacturers in many different ways. It can help reduce inventory, reduce efforts needed to move parts and store them in inventory, reduce wait and lead times and reduce overproduction that could result in dead stocks. 3D printing also has other benefits such as continuous improvement of quality and removal of defects.

Prototyping

Design and simulation on computers is one thing. Producing the actual part, however complex it may be, and then checking it for performance, appearance and other parameters is a far better way to arrive at a final design. Use of traditional methods like moulding can be time consuming and expensive. 3D printing manufacturing for prototyping is fast and helps to translate concepts and designs into prototypes that can be studied and analyzed and then further refined until a final prototype is arrived at. It saves time, money and effort. In addition, the final prototype can be the basis of superior design for moulds.

Regular manufacturing

Today there is a variety of 3D printing equipments one can choose from. The simplest ones use materials and techniques of stereo lithography to create items that are good enough for prototypes but not good enough to be used as components in equipments or other assemblies. At the other end are 3D printers that can be used in 3D printing manufacturing, using laser sintering and engineering polymers or even metals to product regular parts. The benefits:

• Do away with equipments and machines that are needed to create complex parts in small quantities
• Save money and efforts
• Avoid having to store inventory—3D printing can produce parts on demand. This is especially helpful when such parts are need infrequently as happens in custom purpose machines. A manufacturer of such equipments will find that his suppliers will not supply one off items and a minimum order quantity is involved. 3D printing manufacturing does away with such restrictions and saves on money locked up in dead inventory. 3D printing may be more expensive but, overall, it is better than having to buy dozen pieces that will need higher investment.

 

Getting the right 3D printer or service is of utmost importance for industries that are thinking of prototyping or regular manufacturing of components. Binashree 3D printing manufacturing service is the perfect partner because it can offer both. Manufacturing industries that need their own in house 3D printing facilities can get advice on selection of the right equipment such as laser sintering 3D printers, FDM printers, poly jet printers or metal 3D printers according to the size of the product and its features as well as end use. 

Simplest and low cost equipments are good enough for development of prototypes whereas 3D manufacturing of parts to be used as components in sub-assemblies would need a better grade and more expensive 3D printer. Binashree offers excellent advice and also supplies equipments and materials. If a manufacturing unit simply needs a prototype developed using 3D printing technology does it using its own facilities. It is the best one stop source for 3D printing service and equipments.

Blog Source : https://binashree.wordpress.com/2018/07/28/development-3d-printing-manufacturing-service-provider/

How to Start a 3D Printing Service India?

3D printing is not new. The technology has been evolving and, today, you can get a variety of 3D printers. Some are simple and use materials to create prototypes. Then there are more sophisticated 3D printers that can use a variety of harder materials, even metals, to create parts that can actually be used in production. This is a growing segment and one can start a 3D printing service with just a few equipments and a small space.

3D printing can be highly profitable in India because there are only a few of them and competition is less. You can start 3D printing service India based by following these tips.

Pick the right 3D Printer

There are seven different types of 3D printers available, ranging from the simplest for prototyping, to highly complex for actual part manufacturing using sintered metals. The fused deposition modelling type of printer is highly affordable. It uses plastic filaments that are fused in the machine and deposited to create 3D parts that can even be used commercially, not just for prototypes. The stereo lithography 3D printer uses liquid plastics and lasers to create three dimensional parts but this can be expensive and time consuming. Selective laser sintering 3D printers use a laser and powdered materials to form 3D parts. Such machines can use nylon, glass, ceramics and even metal to form parts. Cost varies and you have to decide based on the clientele you wish to serve and investment you can make. You can get assistance from Binashree in picking the right 3D printer.

Training and use of software

The 3D printer will be tied with a computer system that runs specialized 3D printing software. In order to give your clients the best you must have engineering knowledge, knowledge of materials, and knowledge of structural integrity and, above all, knowledge of how to use software to create the most cost efficient parts. Some training will definitely prove very useful if you wish to run a 3D printing service India but Binashree is here to help so do not worry. You get equipments and training on use of software.

Target market

Even before you start looking for a 3D printer you must know about potential of the market. Can you get sufficient orders to ensure steady cash flow that will give you solid returns? It is no use buying a printer and watch it lying idle.

Small Machine for prototyping or Larger 3D Machine

Small table top 3D printers are affordable. You can use them to create small 3D prototypes and even components that can be used in production but you will not be able to make larger parts or more solid engineering grade components. You will need a more expensive and larger sized machine to create laser sintered 3D parts and you can meet needs of more demanding industrial users besides having capability to supply parts on a regular basis, not just one-off prototypes.

Think about all aspects carefully and then get in touch with Binashree for sourcing the right 3D printer for 3D printing business in India.

Blog Source : https://binashree.wordpress.com/2018/06/27/how-to-start-a-3d-printing-service-india/