Vacuum forming an ABS plastic sheet in Manufacturing industry

  • Thread starter Thread starter Armnd
  • Start date Start date
  • Tags Tags
    Vacuum
AI Thread Summary
Key equations for vacuum forming ABS plastic sheets include heat transfer formulas for conduction, convection, and radiation. Important factors to consider in the study are material stretching, thickness, and shrinkage, with ABS typically exhibiting a shrinkage factor of 0.4–0.7%. This shrinkage is vital for accurate mold design to achieve precise dimensions after cooling. The use of SolidEdge 2024 for design tasks is noted as part of the process. Understanding these aspects is essential for successful vacuum forming in manufacturing.
Armnd
Messages
2
Reaction score
0
TL;DR Summary
Equations to be used in Vacuum forming a ABS plastic sheet.
What are the related equations/formulas to be used in calculations of Vacuum forming an ABS plastic sheet used in manufacturing? (In our plant we use a male mold for producing the required output/product needed)
I can recall the heat transfer formulas for Conduction, convection, and Radiation. What are the other factors to consider if I were to do this study? (We use SolidEdge 2024 for designing and other related tasks)
 
Engineering news on Phys.org
I have made some ABS parts using vacuum casting. I hope this helps. Things to consider are material stretching and thickness, and material shrinkage. ABS has a typical shrinkage factor, usually 0.4–0.7%. This factor is crucial in mold design to ensure precise dimensions post-cooling.
 
Michael Roberts said:
I have made some ABS parts using vacuum casting. I hope this helps. Things to consider are material stretching and thickness, and material shrinkage. ABS has a typical shrinkage factor, usually 0.4–0.7%. This factor is crucial in mold design to ensure precise dimensions post-cooling.
Thanks. I add this considering I've only started making my study.
 
Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'
Scenario 1 (figure 1) A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material. The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm). At this level of stretch, the load cell reads 45N tensile force. Key numbers...
I'm trying to decide what size and type of galvanized steel I need for 2 cantilever extensions. The cantilever is 5 ft. The space between the two cantilever arms is a 17 ft Gap the center 7 ft of the 17 ft Gap we'll need to Bear approximately 17,000 lb spread evenly from the front of the cantilever to the back of the cantilever over 5 ft. I will put support beams across these cantilever arms to support the load evenly
Back
Top