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Encyclopedia of Spring Design
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Includes the four volumes described below in a convenient binder. The encyclopedia is written for design engineers, as a practical guide to those responsible for designing springs. A sufficient amount of detail has been included so that those designers without access to a computerized program can generate an optimum solution to a spring design problem. Many designs do not perform well in service due to incomplete or unclear definition. The assumption is made throughout this encyclopedia that the designer knows the functional requirements of a spring, its space limitations, the environment in which it operates, its service requirements and any special considerations. Includes both U.S. and Metric units. Scroll down for complete descriptions of each volume. (Each book may also be purchased individually.)
Order______Back
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Fundamentals of Spring Design
A guide to the essential elements of spring design, this 100-page book includes sections on choosing spring configurations, terminology, stress, fatigue and reliability.
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* Selecting Spring Configurations
* Glossary of Spring Terminology
Spring Materials
* Chemical and Physical Characteristics
* Elastic Modulus
* Magnetic Characteristics
* Heat Treatment of Springs
* Environmental Considerations
* Stress Relaxation
* Corrosion
* Spring Wire
* Cost and Availability
* Spring Strip
* Other Spring Materials
* Specifying Hardness
Spring Materials Cross Reference
* Glossary of Spring Wire Terms
* Summary Cross Reference of Spring Materials – Wire
Oil-Tempered Commercial Carbon and Alloy Spring Wires
* Cross Reference of Similar Specifications
* Residual Stresses
* Residual Stresses for Increased Load-Carrying Ability
* Residual Stresses for Increased Fatigue Strength
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Oil-Tempered Valve Spring Wires
* Cross Reference of Similar Specifications
* Tables of Specification Equivalents: Carbon Valve, Chrome Silicon Valve, Chrome Vanadium Valve, Modified Chrome Vanadium Valve
Hard-Drawn Carbon Commercial Quality Wires
* Cross Reference of Similar Specifications
* Tables of Specification Equivalents: HD Class 1, HD Class 2, High-Tensile HD, Music/Piano Wire, Piano Wire Valve
Stainless Steel Spring Wire
* Cross Reference of Similar Specifications
* Tables of Specification Equivalents: 302, 304, 305, 316, 321, 347, 631, XM-16, XM-28
Residual Stress, Fatigue and Reliability
* Residual Sresses
* Residual Sresses for Increased Load-Carrying Ability
* Residual Sresses for Increased Fatigue Strength
* Fatigue
* Reliability
* Reliability and Fatigue
* Reliability and Load Loss
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Compression, Extension, Torsion and Garter Springs
A guide for designing and specifying compression, extension, garter and torsion springs, this 54-page book addresses the most common issues associated with these types of springs.
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Compression Springs
* Introduction
* Helical Compression Spring Terminology
* Spring Diameter
* Spring Index
* Free Length
* Type of Ends
* Number of Coils
* Solid Height
* Direction of Coiling
* Squareness and Parallelism
* Hysteresis
* Spring Rate
* Loads
* Buckling of Compression Springs
* Choice of Operating Stress – Static Conditions
* Choice of Operating Stress – Cyclic Applications
* Fatigue Life Estimation Example
* Dynamic Loading – Impact
* Dynamic Loading – Resonance
* Special Springs
* Rectangular Wire
* Stranded Wire Springs
* Variable Diameter Springs
* Variable Pitch
* Nested Compression Springs
* Commercial Tolerances
* Acceptable Quality Level (AQL)
* Packaging
* How to Specify
* Compression Spring Design Example
* Final Design Specification
Helical Extension Springs
* Introduction
* Initial Tension
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* Types of Ends
* Extension Spring Dimensions
* Design Equations
* Choice of Operating Stress - Static
* Choice of Operating Stress - Cyclic
* Clearances
* Tolerances
* How to Specify
* Extension Spring Design Example
* Final Design Specifications
Garter Springs
* Introduction
* Joint Design and Considerations
* Spring Rate
* Radial and Circumferential Load
* Initial Tension and Stress
* Stress
* Garter Spring Design Example
* Final Design Specifications
Torsion Springs
* Introduction
* Number of Turns
* Mean Diameter
* Length
* Spring Rate
* Stress
* End Configurations
* Choice of Operating Stress - Static
* Choice of Operating Stress - Cyclic
* Double Torsion Springs
* Rectangular Wire
* Tolerances
* How to Specify
* Design Example
* Final Design Specifications
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Other Types of Springs
This 66-page book discusses the key principles of designing and specifying specialized springs. These include: hot-wound springs; flat springs, volute springs and wire forms; power, constant-force and spiral springs; and retaining rings, Belleville spring washers and special spring washers.
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Retaining Rings
* Introduction
* End Configurations
* Loads and Deflection
* Stress
Belleville Spring Washers
* Introduction
* Design Considerations
* Design Calculations
* Choice of Stress Level – Static
* Choice of Stress Level – Cyclic
* Stacks of Belleville Washers
* Tolerances
* How to Specify
* Belleville Spring Washer Design Example
* Final Design Specifications
Special Spring Washers
* Introduction
* Curved Washers
* Wave Washers
* Finger Washers
* Choice of Operating Stress – Static
* Choice of Operating Stress – Cyclic
* Tolerances
* How to Specify
* Special Spring Washer Design Example
* Final Design Specifications
Power Springs
* Introduction
* Design Considerations
* Flat Spring Design Example
* Final Design Specifications
Volute Springs
* Introduction
* Choice of Stress Level
* Design Equations
Wire Forms
* Introduction
* How to Specify
Hot-Wound Springs
* Introduction
* Special Design Considerations
* Materials
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* Choice of Stress Level
* Tolerances
* How to Specify
* Retaining Ring Design Example
* Final Design Specifications
* Design Equations
* How to Specify
* Power Spring Design Example
* Final Design Specifications
Constant Force Springs
* Introduction
* Extension Type
* Tolerances
* Motor Type
* Choice of Stress Level
* Tolerances
* How to Specify
Spiral Springs
* Introduction
* Hair Springs
* Choice of Stress Level
* Tolerances
* How to Specify
* Brush Spring Design Example
Flat Springs
* Introduction
* Design Considerations
* Design Equations
* Cantilever Springs
* Choice of Operating Stress
* Tolerances
* How to SpecifyChoices of Operating Stress for Hot-Wound Compression Springs
* Static Applications
* Cyclic Applications
* Tolerances
* How to Specify
* Hot-Wound Spring Design Example
* Final Design Specifications
* Height and Load Measurements
* End Construction
* Outside Diameter
* Supplementary Requirements: Load Rate, Shot Peening, Unground Ends
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Testing and Tolerancing
This 43-page book discusses the principles and procedures for testing springs, and provides guidelines for tolerancing. Includes both U.S. and Metric units.
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Tolerances
* Introduction, warning
* Compression Spring Load Tolerances; Quality Grades
* Compression Spring Free Length Tolerances
* Extension Spring Load Tolerances; Quality Grades
* Extension Spring Free Length Tolerances
* Torsion Spring Load Tolerances (Torque); Quality Grades
* Tolerances for Hot-Coiled Springs
* Tolerances for Retaining Rings; Diameter Tolerances
* Tolerances for Belleville Washers
* Tolerances for Special Spring Washers
* Tolerances for Flat Springs
~ Guidelines for Spring Testing
Helical Compression Springs
* Purpose
* Scope
* General
* Workmanship: Surface, Burr, Ground Ends, Closed Ends
* Dimensions: Wire Diameter, Spring Diameter, Number of Coils, Squareness, Parallelism, Bow, Free Length
* Performance Characteristics: Load/Rate Testing, Fixtures, Buckling
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* Procedure for Load Testing: Stress Relaxation, Fatigue Life
Helical Extension Springs
* Purpose
* Scope
* General
* Workmanship: Burr, Surface, Tool Marks
* Dimensions: Special Terminology, Wire Diameter, Outside Diameter, Free Length, Number of Coils, Hook/Loops, End Relation, Pitch
* Performance Characteristics: Load/Rate, Initial Tension, Stress Relaxation, Fatigue Life
Helical Torsion Springs
* Purpose
* Scope
* General
* Workmanship: Burr, Surface, Shot Peening, Ends
* Dimensions: Wire Diameter, Spring Diameter, Number of Coils, Direction of Winding, End Relation, Length, Other Dimensions
* Performance Characteristics: Load/Moment/Rate Testing, Fixtures, Procedure for Load/Moment Testing
* Stress Relaxation
* Fatigue Life
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| Ways You Can Contribute to Springs |
Feature Articles: Springs is always looking for articles on spring design and materials, quality, safety, secondary processes, equipment, computer software and technology, delivery, inventory, training, basic springmaking problems and solutions, practical management tips, and other topics relating to operating a successful springmaking business. Articles should be original, educational and non-promotional, including relevant charts and graphics. Authors may present one or more of the following: technological developments, research, case studies, applications and “how-tos.”
New Products: Companies may submit press releases about new products. Do not send material on products you have been manufacturing for years. Releases will be published based on relevance to the industry and available space.
Global Highlights: - North America: North American spring industry-related associations and businesses may submit announcements of upcoming events, newly elected officers, ISO certifications, expansions, relocations and other news items.- Overseas: Organizations and businesses outside North America may submit announcements of upcoming events, newly elected officers, ISO certifications, expansions, relocations and other news items.
- Personnel changes, new hires, promotions, obituaries and other staff news are included in this section.
Perspectives: Signed letters to the Editor responding to an article or news item in Springs, or expressing an opinion on a spring industry topic, are included in this section.
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2007 Editorial Deadlines and Themes:
January issue "Lean Manufacturing"
November 1 for feature articles, November 15 for short news items
April issue "Sales, Marketing and Global Competition" Interwire 2007bonus distribution
January 15 for feature articles, February 1 for short news items
July issue "Spring machinery, testing and quality"
April 15 for feature articles, May 1 for short news items
October issue "Spring Materials, heat treatment and stress relief" wire Southeast Asia bonus distribution
July 15 for feature articles, August 1 for short news items
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In analyzing all contributions, Springs looks for information that will help our readers run their businesses more effectively. We are far more interested in comprehensive detail than flashy writing. In fact, we like to develop a "partnership in expertise" with our authors; you provide the technical knowledge and we assist you with communications and presentation skills. Thus, once your article is accepted for publication, you should expect the editor to be in touch regarding the edited version of your manuscript. All authors receive edited copy before publication so they can verify the factual accuracy of the reworked piece.
You may direct your article to a particular group of readers if it does not seem appropriate to write for everyone connected with the spring industry. For example, you may wish to address only company owners, spring engineers or shop floor personnel.
If you are writing about methods or principles that may be hard to grasp, try to include examples or illustrations. Examples may use fictional names unless, of course, you are dealing with real people or events.
If you are writing on a technical subject, please supply as much data as possible to substantiate your findings or claims.
Use as many specifics as possible. Details make good articles better. Feel free to name names, including brand names. If you use a product and it works, say so; if it does you little good, say that.
However, limit your evaluations to your own experience or that of the person you are quoting. Don't put in PR fluff promoting a specific product or service. And keep it balanced. If you use three types of coilers, don't mention just one.
If you are unsure whether to include something, just call and ask. If a deadline is imminent, include the material and note your reservations in your cover letter.
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Manuscripts must be typed, double-spaced. If possible, please include a version on CD-ROM (PC formatted) along with your hard copy. Save the computer file in text-only or Microsoft Word format. If in doubt, give us a call. You may save us hours of typing. You may also send your article via e-mail.
Send all materials to Rita S. Kaufman, Springs Editor, SMI Business Corp., 2001 Midwest Rd., Suite 106 · Oak Brook, IL 60523-1335 USA · Fax: (630)495-8595 · e-mail: rita@smihq.org
Most articles are five to 10 double-spaced manuscript pages (roughly 1,250 to 3,000 words). But we'll consider any length. Say what needs to be said, then quit. If an article is good, but very long, we may break it into several shorter ones for publication. Put a short working title and byline on the first page.
Sending artwork: Whenever possible, submit some kind of visual materials to support your article. This includes photos, drawings, graphs, charts, tables, etc. Send computer graphics in TIFF or EPS format at a resolution of at least 300 dpi. Please do not place photos in your Word document because Word will automatically lower the resolution of the photos.
Hard copies of drawings, charts, etc. should be originals (in black ink, if possible). If you send duplicates, they should be reproduction-quality.
Photos may be either color or black and white. Prints or electronic files are OK. Please do not send negatives, slides or transparencies.
All artwork is returned if requested.
Include a biography. In addition to your manuscript, diskette and visual materials, don't forget to include a short biography. It should be two to four paragraphs discussing who you are, what company or organization you're with, and your background. Please include an address or phone number where readers may contact you.
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Rights and Terms
You are submitting an article "on spec." This means we will review it and let you know if it's suitable for our purposes.
In general, Springs publishes new work. For original work, we reserve first rights plus the right to reprint in our own publications. This includes the right to reprint photos and artwork as well as text. All secondary publishing rights revert to the author.
However, we request that authors do not publish their articles in related industry publications until at least six months after they have appeared in Springs. We also request that the author put the following text at the end of the article: "Reprinted, with permission, from Springs, Issue xx Vol.x, No. x."
We sometimes publish work that has appeared elsewhere, either in print or oral presentation. We must know of all such prior appearances in advance. Credit is given (in print) to the prior publication or presentation.
Springs reserves the right to edit all manuscripts to better serve the needs of our readers: This includes editing for organization, readability, presentation and style as well as for spelling, grammar and punctuation. The editor works closely with the author, who is asked to review edited copy for factual accuracy prior to publication.
Each author receives two free copies of the issue containing his published article. You may also be interested in purchasing customized reprints. (Please call for a free estimate.)
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