Injection molding is defined as a process of manufacturing to make plastic material parts. Molten plastic is injected at a very high pressure into a mold, which comes in an inverse shape of your desired shape. The mold is made by a metal mold maker, which is either aluminum or steel, and precision-machined in order for the features of the desired part to be formed.
Injection molding is widely used for manufacturing various parts, from the smallest part to entire body panels of different types of cars. There are mold making services provided by mold making companies. In the succeeding paragraphs, you will be able to discover them.
Liquid Injection Molding and Its Services
The following are the services provided by companies offering liquid injection molding: design assistance, bonding, mold making or tool, graphics, market entry molding or prototype, high volume production, low volume production, large part molding, micro molding, two-shot injection molding, insert molding, assembly services, stamping services, just-in-time ability and packaging and on-time shipping as well.
These days, you can never deny the fact that liquid injection molding is already becoming important. One major reason for this is the added performance requirements of rubber parts and pieces. In addition to that, more rubber producers are already seeing the advantages of liquid injection molding in the high level of productivity and automation.
With the help of injection molding technology in utilizing liquid rubber, combines the cost-efficiency, speed and flexibility of injection molding with the great properties and characteristics of silicone rubber. It is also used in various applications that cannot be performed by organic rubber such as healthcare, automotive, aerospace and military applications. The utilization of silicone rubber combines the following properties: stability, high temperature, resilience and inertness as silicone rubber is not affected by temperatures from 100 degrees Fahrenheit-450 degrees Fahrenheit. The advancement in liquid injection molding technology has created faster cures so possible, thus enabling reductions of unit costs.
There are also tools that can help in performing mold making in a faster way. The great thing is that there are also some that can be used not for plastics but also for metals.
Jig-grinding for Making Molds
In order to assure that the mold-making service and quality will improve and the delivery date will shorten, jig-grinding must not be overlooked by mold-making services providers. Jig-grinding is a very important tool designed for injection mold-making. It does not just get the job done quickly but accurately as well.
There are reasons why this machine is oftentimes overlooked. First, the toolmakers regard it as an outdated machine that is only good for holes or contours that should be done on a CNC machine. Yes, that is true. That is why it is considered as the mold-making company’s secret weapon for creating a plastic mold. It is so accurate and efficient, thus making the task get done excellently. In fact, there are shops that run jig-grinders all day long, which do various tasks.
This is the right tool that mold-making companies should use in order for them to save time and money. If you believe that jig-grinders can do mold-making excellently, don’t worry because there are mold making services that you can count on using this type of tool.
Laser Machine for Mold Making
For years, the laser machine has been widely used for rendering mold-making services. However, it has just received a limited acceptance globally. This is due to two reasons: uncertainty of this fresh technology and its cost. However, laser machines are really the right options for whatever application. With the freshest and newest generation of laser cutting equipment, there are already several improvements–the cost has dramatically come down, the finishes are whole lot better, accuracy has enhanced and cutting speed has also increased.
A mold maker will benefit a lot from laser machines designed for mold making. They are designed for machining and engraving of shallow, small and complex cavities with a high level of accuracy. A laser machine can also be used to engrave different molds with varying wall angles that are vertical.
Laser micro machining is also capable in producing small, complex and exact cavities as well. Because of the fact that the geometry is directly created from a CAD file, its operation can excellently reproduce the desired shape.
A company providing mold making services can also count on the accuracy provided by the laser cutting machine. What is great about it is that it can cut even within microns. The newer laser machines also have the capability in cutting a variety of shapes and angles. The XYZ positioning can also rival what the CNC machining center has.
There are safety issues raised concerning laser machines. For your information, they are safe unless you will make use of your common sense not to stare directly at the beam of the laser. A laser machine tool can also be fast in performing the mold-making services. However, their speed will be determined by their cost. Of course, if a mold making company has expensive laser machines, they are guaranteed to work faster than cheap ones. This paves the way to get many projects done in just a short period of time. Because the whole process is automatic and computerized, it will readily lend itself to just a small scale production. Logos engraving is a great example. If it is to be cut or shaped into a contoured surface, it will surely not be possible with an EDM or CNC machine. This is when a laser machine becomes the right option.
Shaped hole and small hole machining are great laser machining applications. Cooling holes in the turbine are also laser machined. There is no problem with the blades’ helical shape due to the fact that there is really no tool holder to intervene.
If you are in need of mold making services, then you need to choose the right mold making company that will be able to address your needs and to do the job the way you wanted it to be done through their mold-making tools and equipment.