Five industry pros with more than 200 years of combined injection molding experience provide step-by-step best practices on mounting a mold in a horizontal injection molding machine.
Preventing injection molding defects starts with good mold design. Badly designed molds lead to poor material flow, which leads to imperfections like flow lines that reduce the value and function of the finished molding. One aspect of mold design that can cause flow lines is uneven wall thickness...
as manufacturers using advanced manufacturing techniques such as injection molding, thermoforming, or casting continue to rely on molds to create the majority of plastic, silicone, rubber, composite, and metal parts
1. Design molds and make molds Mold is one of the key components of injection molding, and its design and manufacturing quality directly affect the accuracy of the final product. Scientific and reasonable mold design can ensure the uniform flow of plastics in the mold, reducing the possibility ...
Molds are the perfect way of ensuring that the product being casted retains the correct shape and dimensions. It’s difficult to guarantee that if you just try to wing it or try to guess just how much pliable material needs to be used to achieve the inte
Then, in 1909, Leo Hendrik Baekeland discovered phenol-formaldehyde plastic, otherwise known as Bakelite. A thermosetting resin that was well suited to injection molding, Bakelite was found to be better suited for this process than celluloid. Bakelite had useful insulating properties that made it ide...
Basically, for injection mold making, you need to decide on through hardened or pre-hardened tool steel. Some low-production molds are even made of aluminum, such as the high grade QC-7. Then there are tool steel castings, cast epoxy/steel blends, beryllium copper, and other materials. ...
well the rest of the mold is made, if the ejector pins flash or are the wrong length and contour the plastic part will be rejected. That is why choosing the right pin for the job is important. Saving money on poor qualityinjection mold componentsjust does not make sense in the long ...
The majority of plastic products in the world today are manufactured by injection molding. However, fabricating molds can be prohibitively expensive and time-consuming. Fortunately, molds don’t always need to be machined out of metal—they can be 3D printed. ...
Knit Lines and How to Solve Them Worried about those fine lines that look like hairline cracks in your injection-molded part? Don’t be. Those are knit lines, formed when two opposing flows of material join together in the mold cavity. Commonly seen at the edge of a hole or other cored...