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💡📔Injection Molding Design Guidelines

📌Subject: Mold Wall Thickness

The thickness of the mold wall depends on the spacing between various features in the plastic model.
If features like ribs, bosses are placed close to each other or the walls of the parts, thin areas are created which can be hard to cool and can affect quality. If the mold wall is too thin, it is also difficult to manufacture and can also result in a lower life for the mold due to problems like hot bladecreation and differential cooling. Minimum allowable mold wall thickness needs to be decided based on process and material considerations.

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💡📔Injection Molding Design Guidelines
📌Subject: Uniform Wall Thickness

Non-uniform wall sections can contribute to warpage and stresses in molded parts. Sections which are too thin have a higher chance of breakage in handling, may restrict the flow of material and may trap air causing a defective part.Too heavy a wall thickness, on the other hand, will slow the curing cycle and add to material cost and increase cycle time. Generally, thinner walls are more feasible with small parts rather than with large ones. The limiting factor in wall thinness is the tendency for the plastic material in thin walls to cool and solidify before the mold is filled. The shorter the material flow, the thinner the wall can be. Walls also should be as uniform in thickness as possible to avoid warpage from uneven shrinkage.
When changes in wall thickness are unavoidable, the transition should be gradual and not abrupt.

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📌SOLIDWORKS Quick Tip Natural Frequencies, Mode Shapes, and Vibration analysis

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📚Handbook of Mechanical Engineering

✏️Dr. J. Srinivas
📌 Second Edition

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PDF File Download 👇

📌Handbook of Mechanical Engineering (PDF📁)

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📌 About Mecanum Wheel

The mecanum wheel is a form of tireless wheel, with a series of rubberized external rollers obliquely attached to the whole circumference of its rim.These rollers typically each have an axis of rotation at 45° to the wheel plane and at 45° to the axle line. Each Mecanum wheel is an independent non-steering drive wheel with its own powertrain, and when spinning generates a propelling force perpendicular to the roller axle, which can be vectored into a longitudinal and a transverse component in relation to the vehicle.

How about Mechnum Wheels design? 👇

📌The typical Mecanum design is the four-wheel configuration as demonstrated by one of the URANUS omni-directional mobile robot or a wheelchair with Mecanum wheels with an alternating with left- and right-handed rollers whose axles at the top of the wheel are parallel to the diagonal of the vehicle frame (and hence perpendicular to the diagonal when at where the bottom of the wheel contacts the ground). In such a way, each wheel will generate a thrust roughly parallel to the corresponding frame diagonal. By varying the rotational speed and direction of each wheel, the summation of the force vectors from each of the wheels will create both linear motions and/or rotations of the vehicle, allowing it to maneuver around with minimal need for space.

Above Image Info :
Movements to any directions:
blue: wheel drive direction;
red: vehicle moving direction
a) Moving straight ahead, 
b) Moving sideways,
 c) Moving diagonally, 
d) Moving around a bend, 
e) Rotation, 
f) Rotation around the central point of one axle

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📌Sub: Mecanum Wheel 3D-Modeling in SolidWorks

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#Book
📌Manufacturing Processes
Author : J. P. Kaushish
Publication : PHI Publications
Pages : 1115
Type : E-Book
Size : 25.3MB

#Manufacturing

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To Download the Pdf file of this book 🎁👇👇👇

📌📁Manufacturing Processes
Author : J. P. Kaushish

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📌Solidworks Tutorial Videos

✅Sub: Differential Gearbox modeling in the SolidWorks

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