Senior Design I – Concept Review P07008 – ArcWorks Wash Bottle Assembly Team Members: Sagar Sheth Leonardo Silva Stephen Bennice Gabriela Jaramillo Eric Van Hemel Robert Veiders Faculty Guides: Dr. DeBartolo Dr. Marshall

Project Objective’s Design automated process incorporating all three bottle sizes Reduce human contact with bottle during assembly process Minimize rejected assemblies Apply lean concepts to wash bottle production line

Key Customer Needs Can accommodate different size bottles Should be able to produce large quantities of assemblies Should require minimal force to complete assembly Should create good assemblies The unit should not create additional disabilities for the operators

Key Engineering Metrics Demonstrate that 6 cases of different size bottles can be assembled with average cycle time not exceeding 10 seconds No intervention between the operator and the machine while actual assembly Demonstrate the force required to complete assembly is less than the minimal force required to complete assembly manually for a bottle Produce good assemblies Demonstrate assembly of spout to bottle for at least 2 cases per size

Basic Assembly Components Completed Assembly

Current Process Assembly Process

Solidworks - Bottle

Material Properties Used LDPE Tensile Modulus 35 Ksi Poisson’s Ratio 0.38 Density 0.033 lb/in³ Yield Tensile Strength 1120 psi

Boundary Conditions for current method of assembly

Deformation for current method of assembly

Max Principal Stress for current method of assembly Max 808.196 psi

Boundary Conditions for Proposed Assembly Method

Deformation for Proposed Assembly Method

Max Principal Stress for Proposed Assembly Method Max 158.831 psi

Finding Maximum Force that can be applied to bottle Same boundary conditions as for Proposed Assembly Method Taking Yield Tensile strength for LDPE as 1120 psi Maximum force found is 175 lb

Concept Generation Concepts created by each team member Concepts critiqued Concepts revised

Concept 1

Concept 2

Concept 3

Concept 4

Concept 5

Concept 6

Concept Selection Done as a group Pugh`s Method

Concept Screening (Pugh’s Method)   Concepts Selection Criteria 1 Rob 2 Eric 3 Sagar 4 Steve 5 (Reference) Gabriela 6 Leo Ease of use - + Speed of assembly Ease of manufacturing Operator Safety Robustness Product Support Durability Ease of maintenance Cost Ergonomics Sum +'s 2 5 3 4 Sum 0's 10 Sum -'s Net Score -2 -1 Rank 6 1 Continue? No Combine

Concept 2-3

Concept 5-6

Concept Scoring (Pugh’s Method)   Concept 2-3 5-6 (Reference) Selection Criteria Weight Rating Weighted Score Ease of use 20% 2 0.4 3 0.6 Speed of assembly 15% 0.45 Ease of manufacturing 5% 0.1 0.15 Operator Safety 10% 0.3 0.2 Robustness Product Support 4 Durability Ease of maintenance Cost Ergonomics Total Score 2.75 2.85 Rank 1 Continue? No Develop

What’s Next? Develop detailed model in Solidworks Begin lean Challenges: Cycle time < 10 seconds Visual Instructions Budget

Questions??