Simulation is the Smarter Solution
The Problem “What is a sink mark?” “Where will the sink marks be?” Sink marks on plastic parts are in indentation in the surface, caused by the plastic shrinking and “pulling” the surface inward. Visually this causes a “low spot” or “depression” or “valley” in a...read more
The Problem “Am I going to get trapped air in the mold?” “Where will the air traps be?” “Air traps” are areas in the mold where air cannot escape during the molding process. Since the mold halves are designed one for one, meaning the mold halves touch, the air that...read more
The Problem “Where will the weld lines be?” “What is a meld line?” “Weld lines” is term that is used when two plastic flow fronts come together. Typically, this happens around screw bosses, differential thicknesses in part geometry and multiple gate locations in a...read more
The Problem “How do I know the cavity has a balanced fill.” Unbalanced filling within the cavity can lead to many issues with the final molded part, namely warping. If the part is not filled evenly, meaning the melt front arrives at both ends of the part, there is...read more
The Problem “I am not sure how many gate locations I will need to properly fill the part and I am also not sure where to put them.” Gate location is critical in the injection molding process, gates are the points on the part where the plastics leaves the runner...read more
When Failure Is Not An Option Have you had to rework a new plastic injection mold lately? If you have you know how frustrating the loss of time and resources are. For your next mold, take the guesswork out with some help from BlueBill Engineering Services. Read the...read more
Will your molding machine have enough pressure to inject the plastic into the mold? When the amount of filling pressure it takes to fill a mold exceeds the capacity of the molding machine, it results in a situation commonly referred to as “pressure limitation.”...read more
If you are not confident that the part your customer designed will properly fill in an injection molding process, and that it will produce short shots… Or if you are concerned that you will have to spend additional money to correct the problem in the mold which would...read more
Article by Jeff Osman of SOLIDWORKS.
Communication between the part designer and mold designer is crucial to keep the tool design and build on schedule.