compression & extension springs - helical products...
TRANSCRIPT
1
Derek Evans & Randy Kingsbury
Compression and Extension Springs
2
We will cover
Technical aspects
Benefits of Machined Springs
Demonstration
Hands on
Industry opportunities for compression and extension springs
5
Attachments
What attachments are available for Machined Springs???
Endless possibilities!
6
Single Start Compression
7
Double Start Compression
8
Integration of features
Combine multiple-part assemblies into a single part.
Reduce assembly time
Reduce parts count & increase reliability
Reduce parts in inventory
Lean
Purchasing
13
14
Value Added Sell
Time to manufacture and test a series of springs
Time to manufacture a full set of 20 possible end caps
Inventory costs of both
Time to evaluate system to determine what force at height is required
Match parts, install and test
OR
Drop in a Helical Machined Spring
17
Before and After
18
Multiple Starts
Balanced loading
Squareness Under Load
Tailoring spring rate
Redundancy
19
Squareness Under Load
20
No Twisting/Rotation during compressionA. 2 Flexures on one part: One Right and one Left hand Flexure OR
B. Inner and Outer spring wound opposite
21
No Rotation Demo
22
Precision
Machined Springs can offer greater precision
Tolerance on spring rate or on force at installed position.
±20%
±10%
±5%
±2%
±1%
23
Stress
24
Applications
Oil exploration
Corrosive environment
Valve application
Balanced loading with double start
High forces with small OD
550 lb with .625in OD
(2,447 N with 15.9mm OD)
Potential: Unknown
Price: $1100 each
25
Applications
Tooling and Die application
High cycles
High wear
High stress
Combine surrounding parts
Simplify installation
26
Applications
Aircraft Engine (Flexure fact #34)
Precise spring rate
High stress
Integrated threaded holes
In production for over 20 years
27
How to sell Compression & ExtensionMachined Springs
Where are they a good fit?
Selling a solution…”Value Added”
When are they not a good fit?
Use the EPF
28
Applications
Testing Equipment
High Force, large size
Custom threaded attachments
Had to fit into existing hardware