injection molding: continuing to pave the path for bio-polymers luis onsurez- engineering technology...
TRANSCRIPT
Injection Molding: Continuing to Pave the path
for Bio-Polymers
Luis Onsurez- Engineering Technology
Mentor: Chris F. Wise
ObjectivesPhase 1
• To design a mold that can allow user to control injection process parameters
• Correlate the information seen in software packages such as MoldFlow and Solidworks to data obtained from modified mold
Phase 2• Redesign and manufacture new mold based on the three sources of data. • Begin analysis of Bio-polymers to map the polymers characteristics
The Injection Molding ProcessThe process of melting down a material and injecting
it into a cavity to form a shape or object.
-Hopper-Injection screw-Barrel-Nozzle-Sprue/Runner-Cavity
What are Bio-Polymers?
Bio-Polymers are a compound derived from plants
Environment Benefits
Pros • Reduces
dependency on Petroleum/ Fossil Fuels based polymers
• Can be produced from material found within the Country
Cons•Fairly new in Industry•Currently requires larger amounts of energy to produce than conventional thermoplastics
Current Mold Designs
• Coolant / Mold Contact
• Coolant Tunnel position
Pictures by DME Plastics
Initial Mold Design • Less Material
• Thermal Control through Forced Convection
• Reduction in variables that effect finished products
• Cavity based on ASTM Standard allows for further studies
• Allows the use of Bio-Polymer due to a constant mold cavity temperature
Changes to Mold Design
• Single shot design• Runner positioning• Runner design• Gas vents• Thermocouples
Applications of this Mold Design
• Thermoplastics
• Bio-Polymers
Test Preparation
• Cleaning Materials– Cleaning Compound
• Mold Preparation– Set Thermocouple– Mold Clamping
Data Acquisition Equipment
• Data Logger
• Power Supply
• Thermocouples
Material Testing
• Petroleum Based
– Polyethylene– Polypropylene
• Future Testing– Bio-Plastics (Bio-Polyester)– Tensile Testing
Results
• Currently Processing Phase 1 obtained Data Samples
• Computer Analysis– MoldFlow
– Solidworks/COSMOS
Special Thanks To
Chris Wise
Dr. Delia Valles
Andy Lawerence
MultiPlastics Inc
Professor Sonya Cooper
AMP
Charlie ParkKim ParkeyMatt SteeleProfessor Thomas JenkinsStudent Project Center StaffU.R.A. staff and mentorsNSF
References
• http://www.plastic-gear-manufacturer.com/
• http://www.seattlerobotics.org
• http://www.glue.umd.edu
• http://www.patentgenius.com/patent/5296174.html
• http://www.dmeuniversity.net/english/f1.cfm
• http://www.biopak.com.au/images/Resin%20handful.jpg
• http://www.thefreedictionary.com/injection+molding
• http://engr.bd.psu.edu/pkoch/plasticdesign/IM_Thermoplastic_files/image002.gif
• http://www.scudc.scu.edu/cmdoc/dg_doc/images/process/control/b1000002/02machin/machin.gif