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Q
calculating projected area injection molding
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
Calculating the projected area in injection molding is crucial for determining the clamping force required to keep the mold closed during the injection phase. The projected area is essentially the largest area of the part (or parts) being molded, including any runners or sprues, viewed perpendicular to the direction of the injection force. To calculate it, you need to measure the length and width of this area on the part drawing or CAD model. Multiply these dimensions to get the projected area in square inches or square millimeters. An accurate calculation ensures the correct selection of an injection molding machine that has sufficient clamping force, which is typically expressed in tons. The clamping force required is directly proportional to the projected area of the part and the pressure inside the mold. Incorrect calculations can lead to defects in parts or damage to the mold, making precision critical.
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