Solidworks

how to create a spline shaft in solidworks ?

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What is spline command in SOLIDWORKS?

The SOLIDWORKS software supports two types of splines, B-splines and style splines. You can use B-splines to create complex curves. You can define and modify them using several controls, including spline points, spline handles, and control polygons. You define and control the curves using control vertices. …

What is difference between spline and serration?

Although a splined shaft looks like having a series of shaft keyways with keys pushed in, splines are considerably stronger than the keyed joint as the keyways weaken the shaft and reduce its torque carrying capacity.

Is 3665 a standard spline?

This standard has been prepared to rationalize the production and to facilitate interchangeability of exter- nal and internal splines. 0.4 This standard deals with involute sided splines of 30′ pressure angle for general engineeering ‘purposes.

What is the pressure angle of a spline?

Splines are generally available in pressure angles of 30, 37.5, and 45 degrees. Size and pressure angle are determined based on the desired tooth engagement and spline fit. Coupling configuration. Splines can be constructed in either side-fit or major diameter couplings.

What is the use of spline command?

The spline command in AutoCAD is used to create a smooth curve, which passes through a set of predefined points. It creates a non-uniform curve passing through the points. Thus, spline can be created by defining fit points or Control Vertices (CV) points.

How do you explode a spline?

If the spline and arc are joined as a single polyline object, type X or EXPLODE at the command line, select the object, and hit the Enter key. The spline and arc objects will now be separate objects.

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What is a spline in math?

In mathematics, a spline is a special function defined piecewise by polynomials. … In the computer science subfields of computer-aided design and computer graphics, the term spline more frequently refers to a piecewise polynomial (parametric) curve.

How do you create a spline?

A spline is a geometric feature used to join one shaft to another. It transmits torsion, but permits axial sliding. The current practice for designing splines to carry a torque is to use involute splines with no helix angle or taper on the external tooth.

How do splined connections fail?

Spline teeth are usually sized and fail in the following ways: spline tooth shear stress, compressive stress on the flanks of the teeth, bursting stresses, and torsional-shear stresses of the shaft or supporting structure.

What is difference between key and spline?

Keyed shafts are defined by two features: the shaft and the rotating element which has a key seat. … Unlike keyed shafts, splined shafts can reduce torque transmission capacity. Splines also offer a more uniform transfer of torque and provide equal distribution of a load along the teeth sides of the gear.

What is din5480?

DIN 5480 was structured to permit easy slip-fitting of components such as, for instance, ball or roller bearings. This condition is met by making the reference diameter equal to the bore of the bearing and then modifying the profiles of the teeth of the hub and the shaft accordingly.

How do you measure the thickness of spline teeth?

Effective Tooth Thickness of an external spline is equal to the circular space width on the pitch circle of an imaginary perfect internal spline, which would fit the external spline without looseness or interference, considering engagement of the entire axial length of the spline (i.e. the smallest space width that …

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What does 16 32 DP mean?

The trick is to understand what the spline specification stands for: example a 1.375″ OD, 21 tooth 16/32 DP 30° PA means that the spline has the height charactersistics of a 32 DP gear but the circular pitch characteristics of a 16 DP gear.Why pressure angle is 14.5 and 20?A high pressure angle means that higher ratio of teeth are not in contact. Too much of the pressure angle will increase gear wear(pitting) and noise. Hence, a balance between strength and noise is found and the pressure angle used now is 20° instead of 14.5° used earlier.

How do you choose a pressure angle?

The higher the pressure angle, the higher the tooth strength. The noise that the gears generate decreases with an increase in the contact ratio. Thus, the selection of pressure angle involves many factors. Normal pressure angles in use today are between 17.5° and 22.5°.

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