During shaping operation, the cutting tool exerts a force on the workpiece. This force can be resolved in two components(horizontal,vertical). Horizontal force is the cutting force. Vertical force causes the workpiece material to deform elastically. We know, an elastically deformed body regains its original shape after the force is removed. So, after the tool move past one elastically deformed section of the workpiece, the section is raised up as the force is removed from the section. This effect is called "Strain back effect".
A shaper machine typically includes accessories such as a vice for securing workpieces, various types of cutting tools (like single-point cutters), tool holders, and feed mechanisms. The primary function of a shaper machine is to produce flat surfaces, grooves, and contours on metal or other materials by using a reciprocating cutting tool. It can also be used for making keyways and slots. The machine operates by moving the cutting tool back and forth across the workpiece, allowing for precise shaping and finishing.
Using a vibrating machine with a Harrington rod in your back may not be safe without consulting a healthcare professional first. The vibrations could potentially affect the stability of the rod or cause discomfort. It's essential to seek advice from your surgeon or a physical therapist to ensure that such activities won’t compromise your health or recovery. Always prioritize safety and tailored medical guidance.
Creepfeed grinding is a grinding process that can, in most cases, be used as an alternative to reciprocating surface grinding. The main difference is: Reciprocating grinding - the machine table speed is fast (800-1600"/min), and the grinding wheel infeed amount is very small (0.0002-0.002"/pass). ie removing small amounts of material while the table moves quickly back and forth. Creepfeed grinding-the machine table speed is slow (2-50"/min), and the grinding wheel infeed amount is high (up to .25"/pass). ie removing a large amount of material in one (or a few) slow pass. Creepfeed grinders generally require: high rigidity, full machine enclosure, high horsepower spindle drive, high volume/pressure coolant
The pulley attached to the motor usually has a large wheel on bottom, two medium wheels in centre of the stack and a small one on top. The front, or spindle pulley, is fitted with the large wheel on top. The drive belt can go from top at back, to top at front -thus driving the spindle slowly. If you changed the belt to the big motor pulley and a small spindle pulley the spindle would rotate faster.
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According to Popular Mechanics who tested several abdominal training machines, they believe that they can reduce back strain versus doing crunches with no machine.
Machining a keyway on a shaft using a shaping machine involves several steps. First, the shaft is securely clamped in the machine's vice to prevent movement. The shaping tool, typically a single-point cutter, is then adjusted to the desired depth and width of the keyway. As the machine operates, the cutter moves back and forth across the shaft, removing material to create the keyway profile. Finally, the machined keyway is inspected for accuracy and finish.
The Guthy Renker Perfect Abs machine is designed for users to engage the core as they move in an up and down crunching motion. The machine allows participants to rest their neck and back comfortably to prevent strain.
Did you strain your back when you were moving? Can you pinpoint where the pain is? Is there anything that makes it better or worse?
A shaping machine is primarily used for producing flat surfaces, grooves, and other intricate shapes on workpieces. It operates by moving a cutting tool back and forth over the material, effectively removing metal in a controlled manner. Additionally, shaping machines can create various profiles and contours, making them essential for machining tasks in manufacturing and metalworking industries. They are especially useful for tasks that require precision and the ability to work with different materials.
The angle squat machine can help improve lower body strength, stability, and muscle tone. It also provides support for proper form and reduces strain on the back and knees during squats.
847.9 (sprain and strain of unspecified site of back)
john strained his back at football practice
SPLIFF
shear
a strain
A strain is a medical term meaning there has been abnormal stretching on a muscle and its tendons. This generally causes a painful contraction of the muscle in an attempt to protect itself from further damage. A lumbar strain is a strain in the lumbar region of the back, specifically, the region of the back from below the ribcage to where the spine attaches to the pelvis. This is a very common cause of back pain.