The test gear test gear has the modulus m=4, the helix angle=10, and the tooth width b=8mm. The gear manufacturing process route is: blank-forging-normalizing treatment-roughing blank-inspection, testing-tempering treatment-semi-finishing Car - hobbing - carburizing - car carbon layer - finishing car - quenching - scraping. The average hardness of the tooth surface is greater than 59HRC, and the surface roughness of the tooth surface is Ra=0.8m1.6m. The chemical composition and mechanical properties of the material are in compliance with the general inspection requirements of GB/T8539.
The test machine and the test fixture test machine are HS-LETRY100kN microcomputer-controlled high-frequency fatigue test machine. The machine has high loading precision and the test data can be accurately displayed and recorded. The test machine loading frequency is f=126131, stress ratio R=0.2. Clamp As shown, the clamp has an automatic loading function that distributes the load evenly along the tooth direction.
The failure criterion shows visible cracks, load or frequency drop 510, and broken teeth along the root. The test protocol and the data test protocol use a single-tooth pulsation loading method. The tested gears were randomly drawn from all of the test gears and avoided that the tested teeth of the same stress level were from the same gear.
1) In the medium life zone, the stress level of 23 is selected, and the median fatigue life and safe life are determined by the group method; 2) Under the specified cycle number N0=3106, the conditional fatigue limit is determined by the lifting method. Basic assumptions for statistical analysis and processing of data 1) In the group test, the fatigue life follows a lognormal distribution; in the lift method test, the fatigue strength follows a lognormal distribution; 2) in the medium life region, the PSN curve Following equation (1), it is straight in logarithmic coordinates, that is, conforms to equation (2).
Test data analysis results Before the lifting method test, the rough fatigue limit value is estimated by the group method, and then the stress level difference is determined according to the estimated value. (Indicating that in this test, all stress parameters s are replaced by load F, the unit of F is kN) Lifting test data load Fj/kN test cycle number 21.001.2506E 061.1755E 062.4180E 0520.501.7326E 06>3.0E 068.0490E 05>3.0E 0620.00>3.0E 065.1060E 05>3.0E 0619.50>3.0E 06 Lifting method obtained by lifting method test data processing result median fatigue strength F5020.4167 subsample standard deviation / kN0.372790 - fatigue strength F90 /kN20.416795-Fatigue strength F95/kN19.938999-Fatigue strength F99/kN19.803699.9-Fatigue strength F99.9/kN19.5498 According to the above data analysis results, it can be clearly seen that the reliability is 90, 95, 99 respectively The fatigue strength at 99.9 is replaced by the ultimate load in this test for the convenience of recording.
Carrying capacity calculation The theoretical value of the bending fatigue limit of the ZY-1 double circular arc gear obtained by finite element analysis is used for the calculation of the bearing capacity of the universal reducer series. Taking the single-stage reducer as an example, the calculation results are as shown. The load capacity of the series of hardened involute gear reducers with the same specifications.
The automotive industry is a wide range of companies and organizations involved in the design, development, manufacturing, marketing, and selling of motor vehicles, some of them are called automakers. It is one of the world's most important economic sectors by revenue. The automotive industry does not include industries dedicated to the maintenance of automobiles following delivery to the end-user, such as automobile repair shops and motor fuel filling stations. Around the world, there were about 806 million cars and light trucks on the road in 2007, consuming over 980 billion liters (980,000,000 m3) of gasoline and diesel fuel yearly.[ The automobile is a primary mode of transportation for many developed economies.
The density of aluminum is only one third of that of iron and steel, but its thermal conductivity is more than three times higher than that of iron. Most notably, the structural design optimization of Al substitute Steel can achieve significant weight loss for Auto industry, and the effect can be directly reduced by 50 to 100 percent. Cars use 1 kg aluminum instead of 2.25 kg steel, which can reduce exhaust gas emissions by 20 kg. it can be seen that aluminum alloys have high strength, recyclability and corrosion resistance. Low density and other high quality properties have become the first choice material for automobile weight loss. XINYU MOULD have dedicated ourselves into Auto alum. Die casting industry over past years by designing and building alum. HPDC component for AUTO OEMs which have the demand of light metal parts for weight reduction (Structural Parts) as well as parts for Automotive Powertrain Oil Pan ,Redirector, A/C Compressor are in our competence area, irrespective of sophistication or size, XINYU is able to offer unparalleled casting solution with competitive cost but without quality compromise, warmly welcome paying the trip to XINYU MOULD
Xinyu Mould Capabilities
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Xinyu Mould At Glance
1.Year Of Establishment:2002
2.Location:2 (One Is Brand New)
3.Land Area:3600sqm
4.Emplyees:120
5. Equipment;CNC:18 (Makino, Toshiba, Liyang ), WEDM:10, EDM:9, Spotting Machine:2, CMM:2, Gun Drill Machine:2, Die Casting Machine:7, Others:50
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Xinyu Mould Technical Profile
1. Engineers In 2d&3d: 16
2. Engineers In Cnc Programming:6
3.File Format For 2d: Dwg&Dxf
4.File Format For 3d:Iges&Step
5.Software For 2d:CAD
6.Software For 3d:Simens NX & Pro-E
7.Software For Programming: Powermill
8.Software For Mould Flow: Magma
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Xinyu Mould Process Control
1.MES Process Control System
2.IATF 16949 Quality System
3.Well-Trained Operators
4.CMM Inspection
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Xinyu Mould Advantages
1. CAE Support Magma(Lid 18175001)
2.Rich Experience In Casting Dies For Auto Structual Parts,Powertrain;Oil Pan;Redirector; AC Compressor
3.Trial Run Machines Available In House From 160t To 1600t
4.Vaccum Venting System Application In Dies
5. Partial Squeeze Skill In Dies
6.High Precision Imported CNC(5 Axis)
7.Globalized Hr Concept
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Xinyu Mould Die Capacity
1.Max Die Size:2500*2500*1800
2.Max Die Tonnage:2500t
3.Biggest Die Casting Machine:1600t
4.Most Complex Die: 11slides
5.Yearly Capacity:350sets
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Xinyu Mould Marketing
1.Main Market:Na;Europe;Asia
2.Main Field: Auto;Telecommunication;
Lighting;General Machinery;Power Tool
Furniture
3.Partner Offering After Sales Service:
Available In India&Us,Europe
4.Business Involved:
Aluminum Die Casting Dies
Aluminum Die Casting Components
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Xinyu Mould Commercial Terms&Conditions
1. Fob Ningbo/Shanghai
2.Payment Term:Tt
3.For Dies:50% Down Payment 50% Prior To Delivery
4. For Castings: 10% Down Payment
The Rest Within 30days After b/l Date
5.Leadtime For Quotation:2days
6.Feedback For Customers' Query:24hours
Aluminum Castings For Automobile And Motorcycle Parts
Automobile Aluminum Parts Castings,Motorcycle Aluminum Parts Castings,Automobile Aluminum Die Casting,Motorcycle Aluminum Die Casting
Ningbo Beilun XinYu Mould Manufacturing Co.Ltd. , http://www.xinyudiecasting.com