Which is the best definition of hard turning?
Hard turning is typically defined as the turning of a part or barstock of harder than 45HRC on a lathe or turning center. Since surface roughness of Rmax/Rz=1.6s can be achieved, hard turning is often considered a replacement for grinding operations or as a pre-grinding process.
What should the surface hardness be for hard turning?
Hard turning is most often performed on post-heat treated parts with surface hardness ranging from 45HRC to 68HRC or even higher. The process of hard turning shares many fundamentals with its “soft turning” sibling.
When to use hard turning instead of grinding?
Since surface roughness of Rmax/Rz=1.6s can be achieved, hard turning is often considered a replacement for grinding operations or as a pre-grinding process. Hard turning is most often performed on post-heat treated parts with surface hardness ranging from 45HRC to 68HRC or even higher.
When to change the resistance on a bike?
Take some time to get your legs moving before tweaking the resistance setting. If you’re on a mechanical bike, the resistance will be active as soon as you start pedaling. If the resistance is at a low setting, pedal for a while to get into a consistent rhythm before making a change.
Take some time to get your legs moving before tweaking the resistance setting. If you’re on a mechanical bike, the resistance will be active as soon as you start pedaling. If the resistance is at a low setting, pedal for a while to get into a consistent rhythm before making a change.
What does it mean when your steering wheel is hard to turn?
Another common cause of steering wheel hard to turn is a cracked or broken serpentine belt. The belt gets worn out over time because it works all the time when you drive the car. The wheel starts showing the sign of stiffness when the belt begins to erode and becomes loose.
What to do if pedal resistance does not change?
Use a multimeter to check continuity through wiring and the resistance motor. Repair or replace any damaged wiring. Replace the resistance motor if your meter measures infinite resistance through the motor.
Why does the resistance on my elliptical not change?
If the resistance motor doesn’t move when activated, replace it. If pedaling your elliptical feels the same at every resistance setting, the resistance motor could be the problem.