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JIS G 3522 PDF

JIS G Piano wires (Foreign Standard). standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/ View all product. Find the most up-to-date version of JIS G at Engineering JIS G Piano wires (Foreign Standard). Available for Subscriptions. Content Provider Japanese Industrial Standards [JIS].

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Same as previous example, but spring is not operated in continuous duty. A new graphic was created to visualize y elements in a bar chart.

Spring operates 1 second and makes 2 load cycles at 2 Hz. You can create 6 different Woehler curves in WST1: By this you can see if and how bedding of the spring can be modified to prevent buckling of the spring. If period 1 sec defined, input 2 load cycles for 2Hz. According to JIS, horizontal limit line depends on permissible setting of the spring and may be higher or lower as 0.

Therefore, load cycle frequency is no longer printed in the production drawing for this case. DBF from static shear strength and pulsating shear strength of compression springs. Either this must be a very specific property of chrome nickel alloys, or the table A10 in VDI is incorrect for these materials. Changes are not described. In the JIS example, permissible shear stress 0.

Period can now be entered in seconds as well as minutes, hours, days and years. Database with international material names was extended by material names according to Chinese and Indian Standard, and by ISO material names as well.

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Load cycle frequency 2 Hz, makes load cycles in 4 minutes. And not even these corrections done consequently.

Pulsating shear strength and static shear jia permissible shear stress together with tensile strength is sufficient to create a fatigue strength diagram.

Then 4 seconds stop period. Tables can be displayed as help for input of friction coefficients. Calculated lifetime in hours is 13 times higher in load cycles 2. Then 48 minutes stop period. I found some mistakes corrected:. And also for 2.

But in example B3, the old formula with 1. New Quick4 View includes material properties and diagrams in an ISO drawing frame on one screen. New release of VDI was issued in November Calculation with and without load spectrum must lead to equal results. It is approximately identical with the release of December Load spectrum includes only one share with L1, L2, and number of load cycles. At “Animation” you kis watch when the spring begins to buckle.

JIS G – Piano wires (Foreign Standard)

Obviously, only the most conspicuous mistakes have been corrected. This eases input for special bedding on 2, 3, 4 or 5 bearings. Calculated lifetime in hours is now 5 times higher than in continuous duty. Nevertheless, better select material from database, else the software cannot calculate important spring properties:. These thermal expansion coefficients are jid, marked between the known temperatures i.

Room licenses for education are no longer unlimited to any computer in one room, but limited to simultaneous access to maximal 20 workstations in a room. If ISO title block with 10 mm sheet border was configured, some tables in A4 production drawings are now compressed so 3522 drawing content no longer interfere with 10 mm border. Shortcuts for Quick view were unified for all programs to show Quick View by means of key combination Alt-V iew and then 1,2,3,4 for Quick1,2,3,4 View.

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Japanese standard JIS B Load cycle frequency is 2 Hz.

Info No. 154 – Nov./Dec. 2015

Simply modify period from 1 sec into 5 sec. This simple construction does not completely match with a measured fatigue strength diagram, but approximation may be sufficient for a new material with unknown fatigue strength properties.

Calculated lifetime in hours is 6 times higher in load spectrum as his continuous duty with 2 Hz. Self-defined material data are saved together with the spring dimensions.

In equationthe “mzu” for reduced thread length by chamfers was changed from 1. Min ji max values of the alloy components are drawn in a logarithmic scale so that even small shares are visible.

Our compression spring software provide now five types of fatigue strength diagram: And database has been updated, so that alloy components of almost every steel material in the database are included now.