When there is a need for engineers to quickly produce some parts, then they make use of Rapid Injection Molding for it. The parts produced as a result of rapid injection molding process are used to create prototype parts which are further used for conducting design analysis. The components produced in the RIM process are not used as a finished product. They are the bridge to production in the sense that while the actual production mold is being made, it produces parts of production for design analysis. Therefore, it can rightly be said that rapid injection molding is more of a research and development process preceding product development rather than a primary stage of the product development process.
Rapid Injection Molding services are highly beneficial for product manufacturing industries. Some of such benefits have been mentioned below.
1. High Strength- Under the RIM process, the liquified resin is injected into a mold under high pressure and this is done while ensuring an ideal angle for ejection and also the steady thickness of walls. This process ensures that the product thus manufactured does not have any pores and the quality of the final output is uncompromised. You cannot expect such strength from parts made through 3D printing process which makes use of threads or powder.
2. Finish of the Surface- The surface finish of the produced parts is highly dependant on the quality of mold being used. The mold cavity is manufactured by using Computer Numerical Controlled (CNC) milling and then performing some additional finishing operations such as polishing. Furthermore, EDM cutting is resorted to for sharpening the inner corners of the cavity. The result of this entire process is a part having a fine surface finish.
3. Excellent Precision- Injection molding grants greater precision in comparison to other techniques of prototyping. For instance, through 3D printing, you can expect the mold precision to be IT9 at the most while rapid injection molding can yield a precision as high as IT6.
4. Minimal to None Material Waste-There are certain products that require to be tested for more than just a single batch and that too in live conditions. For instance, the final testing stage of medical prototypes involves passing of product to customers for everyday life tests. This implies there will be a need for maybe thousand or more of samples. If you lose out on 50 percent or more of blank material, it will end up costing you a lot altogether. To this end, the RIM process only injects the requisite quantity of plastic into the mold cavity which brings the wastage to minimal or none at all.
5. Molds can be Used for Considerably Big Batches- Most of the prototyping processes are excellent at producing only a small number of parts. For instance, silicone casting is workable for at the most fifteen to twenty parts. After these many parts, the casting deforms to a great extent and you will have to manufacture another lot. Although RIM process molds are not as durable as the traditional ones, they can tolerate many more runs in comparison to most of the prototyping processes; up to about 100,000 or so parts before getting completely worn off.
These are just a few benefits of the rapid injection molding process. To learn about this process and place a request, you can look up rapid injection molding services near to you.
