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Calculator for disc compression springs / Disk Yay Hesaplama ve formül Disk yay ya da tabak yay (İngilizce Belleville washer, Almanca Tellerfeder), konik disk şeklinde olan, darbeli çalışan sistemlerde ard arda birbirini takip eden çok sayıda, cıvata bağlantılarında rondela olarak tek kullanılan, üzerine etki eden kuvvet sebebiyle eğilmeye zorlanan bası yayları ailesinden bir yay çeşididir. Disk yaylar, çok büyük kuvvetlerin ve buna karşılık çok küçük şekil değiştirmenin gerekli olduğu makine konstrüksiyonlarında tercih edilir. Çanak yayı ya da tabak yay olarak da anılır.  YAY DIS CAPI D = 2 r   10^-3 m  YAY IC CAPI D0 = 2 r0   10^-3 m  YAY KALINLIGI δ   10^-3 m  ELASTIKIYET MODULU E   10⁹ Pa  YAY YUKU F   N        YUK GERILIMI σ   10⁶ Pa  YAY YUK YOLU DEGISIMI f   10^-3 m  YAY KATSAYISI k = dF / df = F / f   10³ N/m   www.megayay.com

 

Modulus of shear G Shear strength, Tensile strength ... Material G [GPa] The maximum shear stress of ductile materials (steels) is usually taken ? = 0.58 Rp0.2 according von Mises distortion energy criterion, i.e. yielding). For brittle materials ? = 0.5 Rp0.2.

PROPERTIES OF SPRING MATERIALS >>
(alt tablodan kontrol ediniz) Steel
Copper
Titanium
Glass
Aluminium
Polyethylene
Rubber 79.3
63.4
41.4
26.2
25.5
0.117
0.0003 www.megayay.com PROPERTIES OF COMMON SPRING MATERIALS   Material Nominal Analysis Tensile Properties Torsional Properties Max. Operating Temp. °F Max. Operating Temp. °C Rockwell hardness> Method of Manufacture Chief uses Special Properties Minimum Tensile Strength Modulus of Elasticity E Design Stress % Min. Tensile Modulus in Torsion G psi x 103 (MPa) psi x 106 (MPa x 103) psi x 106 (MPa x 103) Music Wire ASTM A 228 C 0.70-1.00% Mn 0.20-0.60% 230-399 (1586-2751) 30 (207) 45 11.5 (79.3) 250 121 C41-60 Cold drawn high and uniform tensile. High quality Springs and wire forms. Suitable for cyclic applications Hard Drawn ASTM A 227 C 0.45-0.85% Mn 0.60-1.30% CLI 147-283 (1014-1951) CLII 171-324 (1179-2234) 30 (207) 40 11.5 (79.3) 250 121 C31-52 Cold drawn. Average stress applications. Lower cost Springs and wire forms. High Tensile Hard Drawn ASTM A 679 C 0.65-1.00% Mn 0.20-1.30% 238-350 (1641-2413) 30 (207) 45 11.5 (79.3) 250 121 c31-52 Cold Drawn. Higher Cjuality Springs and wire forms. Oil Tempered ASTM A 229 C 0.55-0.85% Mn 0.60-1.20% CLI 165-293 (1138-2020) CLII 191-324 (1317-2234) 30 (207) 45 11.5 (79.3) 250 121 C42-55 Cold drawn and heat treated before fabrication. General purpose spring wire.   Carbon Valve ASTM A 230 C 0.60-0.75% Mn 0.60-0.90 215-240 (1482-1655) 30 (207) 45 11.5 (79.3) 250 121 C45-49 Cold drawn and heat treated before fabrication. Good surface conditionand uniform tensile. Suitable for cyclic applications   Chrome Vanadium ASTM A 231 C 0.48-0.53% Cr 0.80-1.10% V 0.15 min % 190-300 (1310-2069) 30 (207) 45 11.5 (79.3) 425 218.5 C41-55 Cold drawn and ehat treated before fabrication. Used for shock loads and moderately elevated temperature. Chrome Silicon ASTM A 401 C 0.51-0.59% Cr 0.60-0.80% Si 1.20-1.60% 235-300 (1620-2069) 30 (207) 45 11.5 (79.3) 475 246 C48-55 Cold drawn and heat treated before fabrication. Used for shock loads and moderately elevated temperature.                       Properties of common spring materials   AISI 302/304 ASTM A 313 Cr 17.-19.% Ni 8.-10.% 125-325 (862-2241) 28 (193) 35 10 (69.0) 550 288 C35-45 Cold drawn general purpose corrosion and heat resistant. Magnetic in spring tempor. AISI 316 ASTM A 313 Cr 16.-18% Ni 10.-14.% Mo 2.-3.% 110-245 (758-1689) 28 (193) 40 10 (69.0) 550 288 C35-45 Cold drawn. Heat resistant and better corrosion resistance than 302. Magnetic in spring tempor. 17-7 PH ASTM A 313 (631) Cr 16.-18.% Ni 10.-14.% Al 0.75-1.5% Cond CH 235-335 (1620-2310) 29.5 (203) 45 11 (78.5) 650 343 C38-57 Cold drawn and precipitation hardened afeter fabrication. High strength and general purpose corrosion resistance. Slightly magnetic in spring tempor.   Phosphor Bronze Grade A ASTM B 159 Cu 94.-96.% Sn 4.-6.% 105-145 (724-1000) 15 (103) 40 6.25 (43.1) 200 93.3 B98-104 Cold drawn. Good corrosion resistance and electrical conductivity.   Berylium Copper ASTM B 197 Cu 98% Be 2% 150-230 (1034-1586) 18.5 (128) 45 7.0 (48.3) 400 204 C35-42 Cold drawn and may be mili hardened before fabrication. Good corrosion resistance and electrical conductivit. High physicals. Monel 400 AMS 7233 Monel K 500 QQ-N-2863 Ni 66% Cu 31.5% C/Fe Ni 65.0% Cu 29.5% C/Fe/Al/Ti 145-180 (1000-1241) 160-200 (1103-1379) 26 (179) 26 (179) 40 40 9.5 (65.5) 9.5 (65.5) 450 550 232 28 C23-32 C23-35 Cold drawn. Good corrosion resistance at moderately elevated termperature. Excellent corrosion resistance at moderately elevated temperature. A 286 Alloy Ni 26.% Cr 15.% Fe 53.% 160-200 (1103-1379) 29 (200) 35 10.4 (71.7) 950 510 C35-42 Cold drawn and precipitation hardened after fabrication. Good corrosion resistance at elevated temperature. Inconel 600 QQ-W-3903 Ni 76.% Cr 15.8% Fe 7.2% 170-230 (1172-1586) 31 (214) 40 11.0 (75.8) 700 371 C35-45 Cold drawn. Good corrosion resistance at elevated temperature. Inconel 718 Ni 52.5% Cr 18.6% Fe 18.5% 210-250 (1448-1724) 29 (200) 40 11.2 (77.2) 1100 593 C45-50 Cold drawn and precipitation hardened after fabrication. Good corrosion resistance at elevated temperature.   Inconel x 750 AMS 5698, 5699 Ni 73.% Cr 15.% Fe 6.75% No. IT 155 Min. 1069 Spg T 190-230 (1310-1586) 31 (214) 40 12 (82.7) 750-1100 399-593 C34-39 C42-48 Cold drawn and precipitation hardened after fabrication. Good corrosion resistance at elevated temperature.

 

 

Tags: Spring Springs Yay Yaylar

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