Hot stamp printing is a process whereby an engraved image, hot stamping die or type, is heated and then forced down fronting a part with a marking foil sandwiched in between. It is a dry printing technique of lithography in which pre-dried ink or foils are fronted to a surface at high temperatures.The surface where the die meets the part is where the ink from the foil makes its mark. Though this may be a simplified description of hot stamp printing, it is the basis of the mechanism, and where you need to start.
How Does it Work?
The press-hardenable material heats to over 900 degrees, to an austenite temperature in an oven, during the initial stage of the press line. The material is then transferred quickly to a press, and the part forms while the material is heated. The part then gets a cooling - put in a water-cooled die basin - for some few estimated seconds at the bottom of the stroke. During this process of cooling, the material's grain structure converts from an austenitic state to a martensitic condition.
Why Choosing Hot Stamping?
- Hot stamping can be applied to mark a multitude of different materials, the most common substrate being plastic.
- The most positive part about hot stamping is that it is a dry process. You don't need to have a bunch of degrees in chemistry to operate a hot stamp printing machine as you don't need to bother with mixing inks.
- Hot stamp printing is a long-lasting process. When a component gets printed with a fitly formulated film, it can withstand some very harsh situations. When applying a metal die against a plastic part, you can brand the part at the same time. So, if it happens that the color fades or wears off, the labelled image will remain there.
Advantages of the hot stamping technique
High Tensile Strength.
Some relatively complex parts are produced in a single-step die when applying modern hot stamp printing process. The outcome is a complex, near-net-shape part possessing yield strengths, many times stronger than a mild steel part.
Complex Components
Multi-component assemblies can be re-designed and formed as one element. Hot stamping permits the forming of complex parts in one stroke thereby eliminating some downstream joining processes such as welding.
No Springback
Most probably hot stamping's most significant merit, apart from its strengthening capacity, is its stress-relieving capability that resolves shortcomings with springback and warping. These two present a common problem when forming advanced high-strength steel (AHSS) and high-strength steel (HSS).
Hot Stamp Printing: Utility to Businesses
Producing business cards, promotional stuff, compelling product packaging, and so on, are essential for the effective promotion of any company. While it may seem plausible to accomplish that by using regular printing methods, there are still other attractive surface techniques that are ideal for producing more compelling surface treatments as well. The hot stamp printing machine employs foil and fuses the foil material into the surface, ideally on paper to produce a brilliant surface shine that looks professional and stylish.
