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.
What to do if you're short of breath during pregnancy. 1  Mind your mom and stand as straight as you can. 2  Sleep propped up on your left side. 3  Though you can still go about your daily activities and even continue exercising during pregnancy, don't push yourself too hard.