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Archive for October, 2011

Press Release 10-25-11 Katy Spring Flat Spring Design

Tuesday, October 25th, 2011

Katy Spring Flat Spring Design | Press Release 10-25-11
© Copyright 2011 KATY SPRING & MFG, Inc.

Shipping and Billing Address:
3535 Schlipf Rd
Katy, TX. 77493

Phone: 281-391-1888
Fax: 281-391-0666

 flat spring

Flat Springs come in endless varieties of shapes, materials and functions.  Flat spring manufacturers form flat springs from flat, strip, spring material that are produced with either squared or rounded edges.   They are considered flat springs, because they are made from flat stock spring steel and perform like coil springs, storing and releasing energy.

Flat springs are typically custom springs and are made from jigs and specialized spring manufacturing tooling built by the spring manufacturer as a one-time spring manufacturing.

Flat spring design formulas can be less accurate than compression spring, extension spring and torsion spring formulas with increased deflection.  It’s recommended that assistance is obtained from the spring manufacturer in designing flat springs.  The spring manufacturer will need to know the space, approximate spring load, and environment that the flat spring will work in, in order to assist with the flat spring design.

Additional information the spring manufacturer may need to know about your flat spring design, is the direction the flat spring will bend.  Additional spring stresses will occur if the flat spring deflects against the grain, or where there are sharp radiuses or where holes are made in the flat spring material.

Because a flat spring may perform any number of functions, there are infinite possibilities for flat spring design. This is why flat springs normally require special tooling. Flat spring tooling can be complex or simple. Depending on the design of the flat spring, the flat spring tolerances specified, and the quantity required.  Because of these variables, check with the spring manufacturer to make sure the flat spring design is cost efficient and sensible to manufacture.

When flat spring material is blanked or stamped a burr may occur which can be removed by tumbling. This may not be a good operation for all flat springs such as small, thin flat spring parts. Sometimes it is possible to control the flat spring burr so it will not interfere with the flat spring application.

It is a good practice on flat spring design to provide liberal radii on corners and formed bends. It is also good to provide sufficient length in these bends to eliminate unnecessary secondary operations. Also, keep all holes well away from edges and bends.

Flat springs begin as an annealed spring strip material and are hardened after forming. Flat springs can also be made from hardened spring strip which is then stress relieved.  Because most flat spring is hardened after forming, Flat spring design typically uses commercial stamping tolerances as a guide.  Special flat spring manufacturing processes, like spring manufacturing jigs and fixtures, can aid in holding very tight tolerances

 

Shipping and Billing Address:
3535 Schlipf Rd
Katy, TX. 77493

Phone: 281-391-1888
Fax: 281-391-0666

Torsion Spring Design | Spring manufacturers

Thursday, October 20th, 2011

Torsion Spring Design

© Copyright 2011 KATY SPRING & MFG, Inc.

Press Release:  10-20-11

Shipping and Billing Address:
3535 Schlipf Rd
Katy, TX. 77493

Phone: 281-391-1888
Fax: 281-391-0666

All torsion springs exert torsion spring force along a circular path.  Torsion springs are subject to bending stresses.

Torsion springs come in different forms such as clock springs and power springs, used in lawn mower cranks for example.

Mostly, torsion springs are helical springs made with round wire, square or rectangular wire loaded by torque or a twisting motion.

When designing torsion springs, the designer must consider the end configurations of the torsion spring, such as straight legs, loops, or multiple bends.  The fewer the bends in a torsion spring, the greater the cost savings.

It’s also important to call out the wind direction in a torsion spring, because the torsion spring is typically wound with the legs going inward.

The material type of a torsion spring is important only if the torsion spring will be in extreme temperature or corrosive conditions.  The spring manufacturer can help in torsion spring material selection and size to achieve the desired forces.

If possible, the desired torsion spring load should be specified in inch-pounds at the loaded position.  The torsion spring leg angles relative to the torsion spring ends (loaded) and the angular relation of the ends when the torsion spring is in its free position.  The torsion spring travel is the degrees beyond the loaded position.

Typically, torsion springs are manufactured with closed coils.  In some cases, torsion springs have pitch or space between coils when the torsion spring is deflected.

Appropriate clearance should also be maintained in reference to the torsion spring’s body length.  Spring manufactures can make recommendations for torsion spring body length clearance.

A torsion spring should always be loaded in the direction that decreases torsion spring outside diameter.  In other words, the ends of the torsion spring are bending inwards.

Given that there is zero friction, the rate of a torsion spring is constant throughout its entire range of deflection.  If too much friction causes the rate to vary, coil spacing may be necessary in the torsion spring.  Torsion springs can be difficult to test because of friction and should be considered in a torsion spring design.

Torsion spring wire is stressed when it is bent. If the torsion spring wind direction increases the torsion spring diameter, the torsion spring can set unless it is properly stress relieved. Heating and/or shot peening will aid in preventing torsion spring residual stresses.  The spring manufacturer can help with choosing the right stress relieve method.

Square or rectangular torsion springs are used in high stress conditions or when heavy load in required in a small space.  Round wire is preferred because it’s more readily available and less expensive to manufacture.

A torsion spring increases in body length by one wire size for each revolution of the torsion spring.  Torsion springs typically fit over a shaft to prevent the torsion spring from buckling.  The torsion spring shaft should be about 20% of the torsion spring’s ID at fully loaded position.

For More information on Torsion Springs, please click here

 

Katy Spring & Manufacturing Inc. Press Release 10-10-11

Monday, October 10th, 2011

Katy Spring & Manufacturing manufactures compression, extension, torsion and flat springs, also assists in spring manufacturing design. Katy Spring will be updating the Katy Spring website to include more information regarding compression, extension, torsion and flat spring design assistance to compliment spring manufacturing capabilities. Please continue to check our blog and look for announcements to enhance your spring design needs with this helpful information. For tips on immediate spring design or spring manufacturing contact Katy Spring & Manufacturing today at 281-391-1888.

Bow spring used in oil and gas industry made out of inconel x-750 | Blow Springs

Monday, October 3rd, 2011

Oil and Gas industry use our Bow spring
Bow spring used in oil and gas industry made out of inconel x-750 | Blow Springs

 

Also called the Simple Beam Spring, the bow spring is commonly manufactured from flat bar or strip. A bow spring is formed with an arc at or near the center and is supported on both ends with the force applied to the center of the arc. 

 

 

 

 

 

 

 

Compression spring used in military made out stainless steel | Compression Springs:

Monday, October 3rd, 2011

Compression spring used in military made out stainless steel | Compression Springs

Clock spring used in drilling products offshore made out of inconel: Clock Springs

Monday, October 3rd, 2011

Clock_ spring_used _in_ drilling_ products_ offshore_ made_ out _of_ inconel

Katy Spring Sheet Metal Expansion Update | Spring Manufacturer

Monday, October 3rd, 2011

Thank you to everyone who responded to our sheet metal expansion survey. The response was very favorable and the information will help us in deciding on whether Katy Spring will be complimenting its current product lines of springs, wire forms and light stampings. Currently Katy Spring manufactures small flat springs which can be considered sheet metal parts. The expansion would include capabilities to manufacture larger sheet metal components such as enclosures, thicker sheet metal materials and secondary capabilities including punching, bending and welding. Katy Spring will be posting further up0dates to the sheet metal expansion project and is progresses.

Katy Spring Sheet Metal Expansion Update | Spring Manufacturer

Yellow powder coated Compression Spring | Compression Spring

Monday, October 3rd, 2011

Yellow powder coated Compression Spring | Compression Spring

Please send inquiries to: sales@katyspring.com
Ph. 281-391-1888

Compression-Spring-Music-Wire-White-Color-Code | Compression Spring

Monday, October 3rd, 2011

Compression-Spring-Music-Wire-White-Color-Code | Compression Spring

Please send inquiries to: sales@katyspring.com
Ph. 281-391-1888


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