Taper angles

Pi = liquid viscosity, centipoise Pg = gas density, lb/fF Pi = liquid density, lb/fF CT = surface tension, dynes/cm 0 = tube-taper angle (measured from horizontal), degrees... 

TPEs in comparison to thermoset are also suited for thermoforming, which is a fast, low-cost production. The maximum draw ratio decreases with decrease in hardness. Draw ratio up to 0.1 can be attained with TPEs in the hardness range of 40-50 Shore D. The major limitations are to avoid undercut sharp comers, and adequate taper angle for rapid ejection of parts. 

For components that will operate in pipelines (Part PL) at hoop stresses of 20% or more than the SMYS, and for all components in piping (Part IP), if the nominal wall thickness of the adjoining ends does not vary more than 2.4 mm (%2 in-)/ no special treatment is necessary, provided the joint design meets the requirement of the WPS. Where the nominal internal offset is more than 2.4 mm (%2 in.) and there is no access to the inside of the pipe for welding, the transition shall be made by a taper cut on the inside end of the thicker section. The taper angle shall not be greater than 30 deg. 

Sikora, J.W., The Effect of the Feed Section Groove Taper Angle on the Performance of a Single-Screw Extruder, Polym. Eng. ScL, 41, 1636 (2001)... 

CALCULATE THE K VALUES OF THE SUDDEN CHANGES IN PIPE ENLARGEMENT/REDUCTION WITH TAPERED ANGLES OR WITHOUT TAPERED ANGLES. 

A further increase in the tool-electrode rotation improves the channel quality (Fig. 7.14). The sidewall taper angle of the microchannel profile decreases to almost 0° and the machining over-cut is also reduced. This effect is due to the improved electrolyte flow, promoting chemical etching of the glass. 

Fig. 21 An optical microscope picture of the holes drilled on PMMA by ultrashort laser pulses (100 fs, 800 nm), showing that the taper angle of the hole wall is very small and the bottom of the holes is relatively flat. The diameter of the holes is about 40 f.im...

Design ofthe vent (Fig. 6.51) is determined somewhat experimentally. The width of the opening and the taper angle must be chosen such that there is rapid freeze-off, minimal polymer escape, and burning is... 

Figure 6 Build-up, (a) (d), and dissipation (e)-(h) response with time, toNo/it, and following penetrometer arrest at time, t o, respectively. Pressure response is for a selected pressure monitoring location, Xd, various taper angles for the cone, O, impact velocities. Up, and material strengths, Np-...

This calculation neglects the taper angle of 1° or 2°, needed on the rib to allow easy ejection from the mould. 

Dimension of steel pins Diameter 10 mm Length 100 mm Taper angle 90°... 

For manual tool change only the Morse taper according to ISO 296 is used (Fig. 1) on shop floors in some cases. The force and torque transfer is achieved via the frictional contact of a self-locking taper angle of 1 20. For higher loads there are models with a clamp thread or a cotter. This type of interface is used in drilling spindles and sleeves of tailstocks. 

Specific energy consumption versus taper angle... 

The taper angle of the tip and die depends largely on whether the tooling is selfcentering or adjustable see Fig. 9.23. 

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