Weld Lines vs. Meld Lines

In a recent conversation, I got this age old processing question… George Some of my techs call them weld lines, some call them meld lines… what is the difference? My Response Both Weld and Meld Lines occur where melt fronts intersect, yet they are different… Weld Lines are formed when two melt fronts meet with […]

The Symptoms Of Machine Dependant Documentation

In a recent discussion with a brand new customer, when discussing common defects he posed this query… Steve K. Although we don’t really have one or two defects we get all the time, but we get a lot of different defects all the time. We run a lot of different molds, machines, and materials… and […]

Scientific Molding For High Speed Applications

In a recent webinar regarding Scientific Molding, I received this question… Ralph Is scientific molding applicable to high speed packaging machine where injection fill time and hold time are around 0.5s with an overall cycle time of 3sec? My Response Yes, you should always approach processing logically and document the process by its outputs… especially […]

1st to 2nd Stage Response Time

I was asked this great question the other day… eMailer I heard something about machine response (reaction time during switching from fill to hold). How does this response influence my process? My Response There are many aspects which must be considered when reviewing the transfer from 1st to 2nd stage. Most of these can be seen on […]

Reading Materials are Not Training Materials

I was recently asked about the effectiveness of reading materials… Chris We receive several monthly periodicals at our plant, and my manager asked me why these cannot be used for training… I know this won’t work, but I don’t know how to explain this to him. Can you help me understand why this is so? […]