There is no clear boundary between titanium rods and titanium wire, often called titanium rods with thick diameter and not too long length; thin diameter and long length, rolled called titanium wire. Titanium tubes and rods of titanium process and titanium wire is largely similar, much the same, but their stretching with the mold needs to be turbidly designed. For titanium alloy drawing, such as cold drawing difficulties, can also be used warm drawing. In short, the principle of drawing titanium tubes and rods wire concise process for: drawing with a mold billet preparation - mill head - drawing - heat treatment - finishing - finished product.
(1) Mechanical properties of metals. Closely related to the yield strength of the metal being stretched. Usually, there is a linear relationship between the yield strength of the stretched metal and the tensile force, i.e., as the strength of the stretched metal increases, the tensile force increases.
(2) Degree of deformation. The tensile force increases as the degree of deformation increases titanium rods.
(3) Tensile speed. The effect of tensile speed on tensile force is not very obvious in the range of tensile speeds applied in practice. Only at the moment of turning on the equipment, the tensile force increases due to the large acceleration. When the speed is smooth, the tensile force does not change with the change of speed.
(4) Sizing belt length. Affects the friction when the metal passes through, the sizing belt increases, the tensile force also increases.
(5) Die shape die taper and length of sizing band have a direct relationship with the tensile force. The increase of the die angle reduces the length of the deformation zone, reduces the vertical pressure and the friction caused, but the increase of the die angle also increases the resistance to deformation in the horizontal direction. When the die angle is small, the former factor is dominant, so the tensile force decreases with the increase of the die angle; and when the die angle is large, the latter factor is dominant, so the tensile force increases with the increase of the die angle. Therefore. There exists an optimum die angle, and the tensile force is minimized when the optimum die angle is stretched. Experiments show that the size of the tensile force and the arc of the mold has a certain relationship. But the effect is limited. At the same time, due to the conical mold hole shape of the manufacturing and inspection are relatively easy, in the production of commonly used conical mold.
(6) Lubrication and friction conditions. Lubrication conditions and the advantages and disadvantages of lubricants directly affect the size of the tensile force. Tool material and surface roughness is also related to different friction coefficient changes caused by changes in tensile force.
Your message must be between 20-3,000 characters!