lead angle


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Related to lead angle: helix angle

lead angle

[′lēd ‚aŋ·gəl]
(design engineering)
The angle that the tangent to a helix makes with the plane normal to the axis of the helix.
(metallurgy)
The angle at the point of welding between an electrode and a line perpendicular to the weld axis.
(ordnance)
The angle between the line of sight to a moving target and the line of sight to a point ahead of the target.
A dropping angle.
(physics)
The phase difference between a sinusoidally varying quantity and a reference quantity which varies sinusoidally at the same frequency, when this phase difference is positive. Also known as angle of lead; lead; phase lead.

lead angle

lead angleclick for a larger image
i. The angle by which an allowance is made for the radius of turn to enable the aircraft to role out on the desired track. The aircraft must commence its turn to the track before reaching it; otherwise, the aircraft will overshoot the desired track. This lead angle depends on the true air speed (TAS), distance, wind velocity, and aircraft rate of turn. In a given time out, its value is constant irrespective of the TAS.
ii. The angular difference between the line of sight and an aiming line. Also called the angle of lead
References in periodicals archive ?
Given my 50 years of experience in the oil seal industry, it is very exciting to see that Bruker has come up with an innovative, non-contact measurement for shaft lead angle.
After war broke out in 1939, Draper began to build a device to compute lead angles for tank guns by adapting a gyroscopic turn indicator he had developed.
Taking into account the effect of lead angle into consideration only for the nodes on pressure flank, three dimensional analysis involved can be executed using two dimensional mesh pattern, with each node having three degrees of freedom.
TUCSON, Arizona -- Bruker Corporation (NASDAQ: BRKR) announced today the NPFLEX-LA[TM], the first non-contact, three-dimensional surface metrology system to provide quantitative lead angle and surface texture measurements for the control and reduction of fluid leakage of rotary dynamic sealing surfaces.
With a round in sert, there is really no "true" lead angle as it changes based upon the varying depth of cut.
Toshiba Corporation today announced the launch of TB9080FG , a three-phase brushless motor pre-driver IC for general automotive applications, which realizes low-noise and highly efficient motor operation through a sinusoidal wave drive and lead angle control.
By adjusting the geometry of the insert design to introduce a more shallow lead angle of the cutting edge that produces a thinner chip, you also reduce the chip load per tooth significantly so that tools can be fed at what is frequently referred to as 'extreme' feed rates.
The new ProGrip toolholder line is available in 98 different insert and lead angle shank styles to accommodate cast iron, steel stainless steel, and heat-treated material applications.