Explain rake angle - angles of a drill, Mechanical Engineering

Assignment Help:

Explain Rake angle - Angles of a drill

It is also known as helix angle .It is the angle formed between a plane containing the drill axis and the leading edge of the land. It can have a positive, negative or zero value. For a right hand flute its value is positive, for a left flute negative and for parallel flutes it is zero. For most drill the value of rake angle varies from 0 to as high as 48.However, 16 to 32 ranges is quite common for normal materials. Higher values are suitable for softer materials and lower values for harder materials. The power or torque required to rotate the drill is greatly influenced by this angle. Larger the value of this angle, lesser will be the torque required and vice-versa

 


Related Discussions:- Explain rake angle - angles of a drill

Working of lacashire boiler, Working of lacashire boiler: WORKIN G: ...

Working of lacashire boiler: WORKIN G: Water is filled through feed check valve. On burning fuel over grate, the hot gasses are produced which move in flue gas tubes.

The baseline dimension command, The Baseline Dimension Command You can ...

The Baseline Dimension Command You can use this command to generate a series of dimensions from a single base point. You must already have created the first dimension in the se

What do you understand by resolution of force system, (a) The following for...

(a) The following forces (all pull) act at a point : (6) (i) 20 N North-East (ii) 25 N due North (iii) 20 N 30o East of South (iv) 15 N due East (v) 30 N 60o South o

Illustrate about the strap footing, Illustrate about the strap footing? ...

Illustrate about the strap footing? In given demonstrates figure the exterior footing placed eccentrically under the exterior column so that property line limitations are not v

Stress analysis requirements, Q. Stress analysis requirements? All othe...

Q. Stress analysis requirements? All other lines requiring review by the stress group are to be checked for adequate support, stability, excessive movement, etc. Where hand ca

Magnitude of the resultant couple, Magnitude of the resultant couple: ...

Magnitude of the resultant couple: For non-parallel forces also the location of the line of action of resultant may be determined by utilizing R × d = ∑ M o . The magnitu

Heat distribution in spot welding, Heat distribution in spot welding Be...

Heat distribution in spot welding Besides the resistance at the interface, there are six other resistance through which the same welding current is passed. They are: Res

Internal parts of boiler, Internal Parts of boiler: P r essu r e ...

Internal Parts of boiler: P r essu r e Gauge :   For indicating steam pressure W ater Level Indicator : for indicating water level. Steam Stop Valve : Permits fl

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd