Concordia University
Department of Mechanical and Industrial Engineering
INDU 411 - Computer Integrated Manufacturing
Winter 2013
Lab Project Description
1. Description
The objective of this project is to manufacture and assembly of chess pieces. This is a team project where each team has three students. Within each lab session a team will be assigned to
1.1. Chess piece machining/lathe
Manufacture one of the following chess pieces:
· Pawn
· Bishop
· Rook
· King
The chess pieces are turned on a CNC lathe machine from a cylinder block of ¾” diameter x 3” long high density plastic. The operation is performed on proLIGHT Turning Center which is a tabletop, two-axis, slant bed CNC lathe with threading and multiple tooling capabilities. A G/M code will be generated by the students according to the design features of each chess piece. In order to accomplish this, the ProLight CNC Turning Control Software will be used to simulate the tool path of the turning operations.
1.2. Assembly Base Machining/milling
Manufacture an Assembly Base Fixture machined on the CNC vertical milling machine using G/M code programming. The operation is performed on The CNC Machining Center (workstation 2), a three-axis tabletop milling machine which you can run directly from CIM manager or workstation personal computer. In order to generate G/M codes, ProLight CNC mill control software will be used. The raw material to manufacture the fixture is made of 3.5” x 2” x ½” Plexiglas.
1.3. Robotic Assembly Operation
The chess pieces are then inserted to a specific base to complete the product assembly.This operation is performed at the robotic assembly station where each team will be required to program pick and place operations for the assembly tasks.
1.4. Production scheduling and Optimization
Finally, each lab session will run a mixed model production by generating an MRP based order and generating a schedule that will be optimized by implementing scheduling/dispatching rules using OPENCIM software.
2. Project Schedule, Deliverable and Final Report
The completion of the tasks described in section 1 will follow the following lab schedule:
Table 1: Lab Project Schedule
Lab # / Week / Topic / Individual Assignments / Project DeliverablesDue
1
1 / 2 / Introduction to CIM / CAD files for pieces
Project Description
3 / Introduction to G codes in milling
2 / 4 / ProLight Milling and Turning Software and G code
End of chapter 2
5
3 / 6 / ProLight Turning Software and Lathe / End of chapter 3 / Assembly base
Midterm break
3 / 7 / Lathe cont.
4 / 8 / Robotic Assembly Station Robot programming OPENCIM MRP system / Chess piece
Robot program
9
5 / 10 / Production scheduling and optimization / OPENCIM part and process plan definitions
11
6 / 12 / Mixed model production run and report generation / FINAL REPORT
13
The final report is due on Tuesday April 18, 2013 before 4pm. The report should include the following sections:
1. Title
2. T.O.C.
3. Introduction
The introduction of the report should include the objectives, part definition and process plan.
4. CAD Drawings
5. G-Code with comments
In addition to the explanation of G code lines you generate for each part, calculate the estimated machining time and cost for each piece.
6. Robotic Assembly/ ACL Code with comments
Describe the assembly plan for the chess piece and the assembly base. Include a description of the robot(s) used and give insights into the programming and jigs required for the assembly. Report must contain illustrations of robot positions and a copy of robot program code.
7. Mixed model production and System optimization
This section should include the process plan and part definitions for OPENCIM for your project and the results of experiments with different dispatching rules for the mixed model production run, i.e. production of all the chess pieces in your lab section. Create a value stream map for the system.
8. Conclusion
A brief summary of the results should be included as well as a discussion of possible sources of error. Also include any suggestions regarding lab improvement.
Appendix--any raw data or drawings can be included in the appendix of the report.
Attendance 2%
Individual Assignments 2%
Project milestones 2%
Final Report 4%
Manufactured pieces 3%
Peer Evaluation 2%
TOTAL 15%
Deadlines and Deliverables:
Project milestones As indicated in Table 1
Final Report and Pieces with a CD April 18, 2013
Including drawings, G codes, ACL codes,
and final report.
PEER EVALUATION FORM
Your Name (please print) ______
Please use this form to evaluate the contribution of your group members to the term project you submitted. You must grade each member of the group (INCLUDING yourself) on the list of criteria presented below. Each criterion must be given a score between 0 and 10, where 0 indicates a poor contribution, and 10 indicates an exceptional contribution. You must complete all sections of the evaluation.
Be assured that each peer evaluation will be kept strictly confidential and will not be revealed to any student.
It is your responsibility to make sure that all group members submit their peer evaluations. 10 marks will be deducted from your group project mark for every missing peer evaluation. THIS EVALUATION FORM INCLUDING THE JUSTIFICATION HAS TO BE COMPLETED FOR EACH MEMBER OF YOUR GROUP.
MEMBERCRITERIA / NAME: / NAME: / NAME:
Timely arrival at
group meetings
Consistent meeting attendance
Level of interest
towards project
tasks
Quality of written
Contribution
Demonstration of
responsibility for
the project
Timeliness of
required contributions
Percentage of group grade
this member deserves
JUSTIFICATION: Please use the space below and the other side of this sheet to explain your evaluation of each group member.
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