(1) There are many types of template profiles with complex shapes and large size variations. Therefore, it is required to design and manufacture molds of different specifications, structures, and forms in order to form and measure the size and position, and experimental work is needed.
(2) The template requires industrial mass production, and the key is to extend the mold usage time.
(3) The width to thickness ratio of the flat and wide template profile is greater than 100, and the dimensions of the wide and thin wall panel parts are * * and the gap between the flat surfaces requires a wide and diverging mold to reasonably distribute the metal flow in order to meet the forming and high * * dimensional requirements of the profile, as well as high * * positional tolerances, which are difficult.
(4) The majority of template profiles are semi hollow profiles with a tongue to tongue ratio greater than 5. The size and shape requirements are ultra-high, and a mold is needed to form the profile and achieve high quality. The mold must have sufficient strength, no deformation, no cracking, and no collapse for a long service life.
(5) Template profiles require a smooth surface, high size and shape, so it is necessary to use mold steel and strict mold heat treatment processes, implement CNC machining procedures, in order to obtain molds with high toughness, high * *, and low surface roughness.