Providing a Buffer To Accommodate for Variation

I recently received this follow-up question regarding an earlier blog entry… Firdaus To establish a molding parameter, what is the normal percentage tolerence to be used for the injection pressure and other parameters? Currently my process does not have any tolerence and sometimes this may cause difficulty in troubleshooting which will result short mold and […]

How Many Clamps To Use?

In response to a recent blog entry, I got this series of questions… Mauricio How many clamps are needed to hold a specific tool? Which is the correct distance between clamps? Is there an order or sequencing to tightening the bolts? My Response When asked ‘How many clamps should I use?‘ one plant manager I […]

Intensification Ratios with Multiple Injection Cylinders…

I received this from a blog reader the other day… JF I need to be able to figure intensification ratios for my current presses. Right now I am stumped by the intensification ratios because some of the presses have to parralel cylinders exerting force on the screw…..do you multiply the diameter of both? note: The intensification ratio […]

Relying on On-The-Job Training Alone

I heard this comment the other day from a restaurant owner. Although it was not my place to tell him how to run his restaurant, I did think it was a great discussion topic for this blog… Owner I can’t bother to train my staff… they learn what they need to know on-the-job. My Thoughts Expecting on-the-job training to […]

Calculating Material Usage Requirements

I just received a question which is a common frustration for any process whether it is injection molding, blow molding, extrusion, or  compounding… Firdaus I have a problem calculating the material usage on the production floor. When I weigh 10 shots the average weight is 5.2g per shot for an 8 cavity mold. We originally calculated a material requirements of 70.2kg […]