Weldlines… From The Plastic’s Point of View

Weldlines, also called Knitlines, take on the appearance of a hairline crack on the surface of an injection molded part. During injection mold cavity filling, the plastic flow front sometimes must split to go around an obstruction.  When the two flow fronts meet on...

Injection Molded Part Defects – Cracks in Molded Parts

What causes an injection molded part to develop a crack? As you know by now (if you’re reading our blog regularly), we need to analyze the problem “from the plastics point of view”. And you also know that the plastic knows just 4 conditions: heat, pressure, flow and...

Case Study – Injection Molding Training Done Right

What is the most effective way to assure success in executing a business strategy? Smart plastic’s industry executives know that “re-inventing the wheel” ain’t it. No matter what the problem or situation, it is almost certain that someone or...

Training Lessons From Hurricane Sandy

Working in a quaint New England town close to the ocean has its advantages. But if you’ve been watching the news about the aftermath of Hurricane Sandy, you see in graphic, and sometime tragic, detail the power that Mother Nature can unleash. Even though...
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