Clamp force is an important factor when designing plastic parts. The Analysis Consulting team at Hawk Ridge Systems worked with Stamco Specialty Tool to identify whether or not a design could be molded, and clamp tonnage was the main goal. Watch the webinar here: http://bit.ly/1BcJa1J

1. Analysis Services Case Study: You Can’t Mold
That Part – Here’s Why
Christopher Ma
Lead Analysis Services Engineer

2. Agenda
§ Introductions
§ Background Information
§ The Goal
§ How We Helped
§ The Outcome
§ Summary and Closing Remarks

3. Introductions
§ Christopher Ma, Lead Analysis Services Engineer
§ 5 years with Hawk Ridge Systems, Majority Spent
Focusing on SolidWorks Simulation
§ B.S. in Mechanical Engineering, University of California at Santa Barbara
§ M.S. in Mechanical Engineering, University of California at Los Angeles
§ CSWE, CSWP, Elite Applications Engineer
§ Jared Conway, Analysis Services Manager
§ 9 years with Hawk Ridge Systems, Majority Spent
Focusing on COSMOS/SolidWorks Simulation
§ B.S. in Aerospace Engineering, University of Manitoba
§ P.Eng registered in Manitoba, Canada
§ Paolo Olmos, Analysis Services Engineer
§ 3 years with Hawk Ridge Systems, Majority Spent
§ Focusing on SolidWorks Simulation
§ B.S. in Mechanical Engineering, San Jose State University
§ CSWE, CSWP

4. Background Information
§ Have you been in a situation where you knew your answer was
correct but didn’t have an immediate way to prove it?
§ …that’s never going to work.
§ …that design is way too flimsy.
§ …there’s got to be a better way to do that.

5. Background Information
§ STAMCO Specialty Tool & Manufacturing Co., a customer of HRS, was designing
mold tooling for a customer of theirs.
§ www.stamcotool.com
§ The tooling was for a 24” diameter plastic cap, to be fitted on the end of a pipe.
§ Could the spec’d injection molding machine handle this part?

6. Background Information
§ Initial guesses
§ Experience
§ Rule of thumb calculations
§ Online calculators

7. Background Information
§ Four approaches that they could take:
§ Ignore due diligence.
§ Physically test.
§ Purchase software to analyze in-house.
§ Hire a consultant to analyze for them.
§ STAMCO decided to go with HRS Analysis Consulting.

8. How Hawk Ridge Systems Helped
§ How did we fit into STAMCO’s process?
§ We are translators!
§ What was our goal?
Discovery Execution Results

9. The Goal
§ Determine the required clamp tonnage for the part.

10. How Hawk Ridge Systems Helped
§
§
§ How did we accomplish our goal?
Execution Results

11. The Outcome
Results

12. Conclusion
• Based on the required clamp tonnage reported by
SolidWorks Plastics and from rule-of-thumb
calculations, the machine that was spec’d out to mold
the part had insufficient clamp tonnage.

13. Summary
• STAMCO was concerned that their customer’s part
could not be molded.
• STAMCO wanted to do their due diligence and get
another validation point on whether the part would
mold.
• By partnering with HRS Analysis Services, STAMCO
was able to get that additional source of validation.

14. Closing Remarks
• Do you have a similar situation?
• Do you have a structural, thermal, or fluid flow
problem?
• Don’t hesitate to contact us. Big project or small
project; let us turn your design concern into an
analysis question and answer.

15. Closing Remarks
§ Who do I contact for more information?
§ Analysis Services
§ Christopher Ma - chrism@hawkridgesys.com, 650-230-7019
§ Paolo Olmos – paoloo@hawkridgesys.com, 650-230-7033
§ Jared Conway – jared@hawkridgesys.com, 650-230-7006
§ Software
§ Your local sales rep, info@hawkridgesys.com, or our toll free
numbers
§ Free Analysis Consultation
§ More information on our website, www.hawkridgesys.com

16. Hawk Ridge Systems Analysis Services
email: chrism@hawkridgesys.com
phone: 650.230.7019
New & Existing Recorded Webinars:
http://www.hawkridgesys.com/tutorials/
Thank you for attending!
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