Isothermal annealing is sometimes used to help strengthen a steel spring washer. Shot peening can be used for washers carrying dynamic loads to enhance fatigue life by creating compressed dimples in the surface of the washer.
Medical writer and editor. Yes, in your first and second trimesters. Although check with your doctor if you've had medical problems during your pregnancy, such as: You may find that your second trimester â weeks 14 to 27 â is the easiest time to travel.Morning sickness is behind you and your energy levels are higher.lying during pregnancy can slightly increase your risk of thrombosis (blood clots) and varicose veins. Wearing support stockings (not tights, which increase your risk of developing thrush), when you fly will help keep your circulation flowing and relieve swollen veins.
Most experts say it is unlikely that flying will cause pre-term delivery. I don't think that there is any evidence to suggest that flying can cause women to go into labor, says Dr. John Repke, chairman of the department of obstetrics and gynecology at the University of Nebraska Medical Center in Omaha.