332:. These springs are compression springs and can differ greatly in strength and in size depending on application. A coil spring suspension can be stiff to soft depending on the vehicle it is used on. Coil spring can be either mounted with a shock absorber or mounted separately. Coil springs in trucks allow them to ride smoothly when unloaded and once loaded the spring compresses and becomes stiff. This allows the vehicle to bounce less when loaded. Coil spring suspension is also used in high performance cars so that the car can absorb bumps and have low body roll. In off-road vehicles they are used because of their range of travel they allow at the wheel.
82:
25:
352:
136:
289:
367:. A machine called an auto-coiler takes spring wire that has been heated so it can easily be shaped. It is then fed onto a lathe that has a metal rod with the desired coil spring size. The machine takes the wire and guides it onto the spinning rod as well as pushing it across the rod to form multiple coils. The spring is then ejected from the machine and an operator will put it in oil to cool off. The spring is then
153:
143:
Spring rate is the measurement of how much a coil spring can hold until it compresses 1 inch (2.54 cm). The spring rate is normally specified by the manufacture. If a spring has a rate of 100 then the spring would compress 1 inch with 100 pounds (45 kg) of load.
187:
are used as heavy load compression springs. A strip of plate is rolled into the shape of both a helix and a spiral. When compressed, the strip is stiffer edge-on than a wire coil, but the spiral arrangement allows the turns to overlap rather than bottoming out on each
371:
to lose the brittleness from being cooled. The coil size and strength can be controlled by the lathe rod size and material used. Different alloys are used to get certain characteristics out of the spring, such as stiffness, dampening and strength
335:
Coil springs used in the engine are compression springs and play an important role in closing the valves that feed air and let exhaust gasses out of the combustion chamber. The spring is attached to a rocker that is connected to the valve.
339:
Tension and extension coil springs of a given material, wire diameter and coil diameter exert the same force when fully loaded; increased number of coils merely (linearly) increases free length and compressed/extended length.
93:
is a mechanical device which is typically used to store energy and subsequently release it, to absorb shock, or to maintain a force between contacting surfaces. They are made of an
232:
272:
252:
513:
348:
Metal coil springs are made by winding a wire around a shaped former – a cylinder is used to form cylindrical coil springs.
532:
104:
Under tension or compression, the material (wire) of a coil spring undergoes torsion. The spring characteristics therefore depend on the
171:
Tension/extension coil springs, designed to resist stretching. They usually have a hook or eye form at each end for attachment.
508:
485:
68:
46:
39:
451:
426:
279:
Torsion springs, designed to resist twisting actions. Often associated to clothes pegs or up-and-over garage doors.
174:
Compression coil springs, designed to resist being compressed. A typical use for compression coil springs is in
537:
115:: in this case the spring as a whole is subjected to torsion about its helical axis. The material of the
199:
33:
318:
499:
205:
368:
50:
194:(bow springs) are a special form of coil spring which was originally developed for use in the
81:
313:
178:
94:
8:
257:
237:
195:
124:
304:
351:
480:
135:
503:
396:
300:
116:
391:
364:
329:
120:
112:
254:
directed along this helical axis and the lever arm to the system center point
526:
406:
309:
184:
156:
105:
202:
drive trains. The force is applied through the ends of the spring. A torque
123:, either reducing or increasing the helical radius. In this mode, it is the
359:
and arc spring systems (systems consisting of inner and outer arc springs).
288:
386:
356:
322:
191:
160:
401:
152:
381:
98:
127:
of the material that determines the spring characteristics.
296:
Coil springs have many applications; notable ones include:
519:
article on the basics of steel coil springs manufacturing.
175:
491:
496:
260:
240:
208:
101:which returns to its natural length when unloaded.
427:"Street Performance & Racing Spring Rate Tech"
266:
246:
226:
524:
363:Coil springs for vehicles are typically made of
234:can be transmitted around an axis via the force
69:Learn how and when to remove this message
350:
287:
151:
134:
80:
32:This article includes a list of general
525:
16:Mechanical device which stores energy
111:A coil spring may also be used as a
97:material formed into the shape of a
18:
515:"You Spring From Morning To Night"
139:A selection of conical coil springs
13:
533:Automotive suspension technologies
486:The Wolfram Demonstrations Project
328:Coil springs are commonly used in
38:it lacks sufficient corresponding
14:
549:
473:
23:
510:, tutorial by Dave Silberstein.
283:
497:Spring Manufacturers Institute
492:Institute of Spring Technology
444:
419:
343:
130:
1:
517:, April 1949, Popular Science
412:
7:
375:
147:
10:
554:
227:{\displaystyle M=F\cdot r}
167:Types of coil spring are:
119:is thereby subjected to a
292:Coil spring in valvetrain
355:Illustration of various
319:Upholstery coil springs
53:more precise citations.
452:"How Springs Are Made"
360:
314:innerspring mattresses
293:
268:
248:
228:
164:
140:
86:
354:
291:
269:
249:
229:
155:
138:
85:A tension coil spring
84:
538:Springs (mechanical)
258:
238:
206:
484:by Sándor Kabai at
502:2020-09-28 at the
361:
330:vehicle suspension
305:computer keyboards
294:
264:
244:
224:
196:dual-mass flywheel
179:suspension systems
165:
141:
87:
267:{\displaystyle r}
247:{\displaystyle F}
200:combustion engine
159:suspension on an
79:
78:
71:
545:
467:
466:
464:
462:
448:
442:
441:
439:
437:
423:
301:Buckling springs
273:
271:
270:
265:
253:
251:
250:
245:
233:
231:
230:
225:
74:
67:
63:
60:
54:
49:this article by
40:inline citations
27:
26:
19:
553:
552:
548:
547:
546:
544:
543:
542:
523:
522:
504:Wayback Machine
476:
471:
470:
460:
458:
450:
449:
445:
435:
433:
425:
424:
420:
415:
397:Spring (device)
378:
346:
286:
259:
256:
255:
239:
236:
235:
207:
204:
203:
150:
133:
125:Young's Modulus
75:
64:
58:
55:
45:Please help to
44:
28:
24:
17:
12:
11:
5:
551:
541:
540:
535:
521:
520:
511:
506:
494:
489:
481:Helical Spring
475:
474:External links
472:
469:
468:
443:
417:
416:
414:
411:
410:
409:
404:
399:
394:
392:Shock absorber
389:
384:
377:
374:
365:hardened steel
345:
342:
326:
325:
316:
310:Mattress coils
307:
285:
282:
281:
280:
277:
276:
275:
263:
243:
223:
220:
217:
214:
211:
189:
185:Volute springs
172:
149:
146:
132:
129:
121:bending moment
113:torsion spring
77:
76:
31:
29:
22:
15:
9:
6:
4:
3:
2:
550:
539:
536:
534:
531:
530:
528:
518:
516:
512:
509:
507:
505:
501:
498:
495:
493:
490:
487:
483:
482:
478:
477:
457:
453:
447:
432:
428:
422:
418:
408:
407:Timmis system
405:
403:
400:
398:
395:
393:
390:
388:
385:
383:
380:
379:
373:
370:
366:
358:
353:
349:
341:
337:
333:
331:
324:
320:
317:
315:
311:
308:
306:
302:
299:
298:
297:
290:
278:
261:
241:
221:
218:
215:
212:
209:
201:
197:
193:
190:
186:
183:
182:
180:
177:
173:
170:
169:
168:
162:
158:
157:Volute spring
154:
145:
137:
128:
126:
122:
118:
114:
109:
107:
106:shear modulus
102:
100:
96:
92:
83:
73:
70:
62:
59:December 2007
52:
48:
42:
41:
35:
30:
21:
20:
514:
479:
459:. Retrieved
455:
446:
434:. Retrieved
430:
421:
362:
347:
338:
334:
327:
295:
284:Applications
198:of internal
166:
142:
110:
103:
90:
88:
65:
56:
37:
387:Leaf spring
357:arc springs
344:Manufacture
192:Arc springs
131:Spring rate
91:coil spring
51:introducing
527:Categories
413:References
323:upholstery
161:M4 Sherman
34:references
219:⋅
500:Archived
461:19 April
436:19 April
376:See also
369:tempered
148:Variants
95:elastic
47:improve
456:Thomas
402:Slinky
188:other.
117:spring
36:, but
382:Bogie
99:helix
463:2018
438:2018
163:tank
431:QA1
321:in
312:in
303:in
176:car
529::
454:.
429:.
181:.
108:.
89:A
488:.
465:.
440:.
274:.
262:r
242:F
222:r
216:F
213:=
210:M
72:)
66:(
61:)
57:(
43:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.