4_injection_molding_instructions_-_week_2.20091012.4ad352ddb6a887.55601775

4_injection_molding_instructions_-_week_2.20091012.4ad352ddb6a887.55601775

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
ME350 – Injection Molding Lab Instructions Week II 1.1.1 Injection molding procedure The molds have already been designed and fabricated for this lab. The lab will allow you to explore the effects of injection molding using different materials and by varying parameters of the process. 2 Safety considerations (1) Safety glasses or a face shield should be worn at all times during the experiment. (2) The safety shield must be in position when melt is purged (air shots) from the barrel. (3) Do not place hands or other foreign objects (sticks, tools) in the hopper area when the machine is operating. (4) Do not tamper with any of the machine’s safety devices. (5) Never reach over, under, or around any machine guards. (6) Do not operate the machine if a member of the group is behind the machine. (7) Examine rubber hoses from the mold-circulating unit for cracks or any other potential cause of failure. (8) Do not attempt to start the injection-molding machine or temperature controller unless the laboratory instructor is observing. 3 Testing conditions The following parts will be injection molded: Illini mold (example part) o 325 °F and 40 psi Spiral mold o Nine temperature/pressure combinations:{325 °F, 350 °F, 375 °F} at {40 psi, 50 psi, 60 psi} Milled aluminum block mold o 325 °F and 40 psi for comparison purposes to the simulation o Custom temperature/pressure if the part doesn’t come out well The injection molding conditions correspond to the MoldFlow simulation conditions as shown in Table 1: 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/15/2010 for the course ME 350 taught by Professor Staff during the Spring '08 term at University of Illinois, Urbana Champaign.

Page1 / 4

4_injection_molding_instructions_-_week_2.20091012.4ad352ddb6a887.55601775

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online