Difference between stamping and die casting molds

Shame to say, Lingxi do nano-coating, but little attention to the PVD traditional mold business, until the integrated die-casting molding technology by Tesla fire, thus achieving weight reduction of 100-150kg, and will be the car shell installation time from a few hours to tens of minutes, the cost of reducing the 40%. but more importantly, in the automotive industry's PVD applications, the die-casting mold market will be squeezed stamping molds! . Here, briefly combing the difference between stamping molds and die casting molds.

01 What is a die casting mold #

A high-precision aluminum die casting die, for example, is a type of mold used to manufacture complex metal products or parts. A die casting mold is an assembled cavity into which molten metal is injected by pressure drop. The mold cools the molten metal and presses it into a complex finished product. Typically, die casting is highly accurate.

1. Clamping - Die casting dies are cleaned and lubricated and pressed closed;
2. Injection - the transfer of molten metal from the furnace to the ladle. The molten metal is injected into the die casting mold cavity by means of high pressure;
3. Cooling - cooling down and waiting for the metal to cold-solidify and take shape
4. Ejection - At the end of the cooling process, the half-mold can be loosened and the solidified casting pushed out of the mold using an ejection mechanism;
5. Grinding - removes the runner along with any burrs that have spilled out; material is recyclable;

02 What is a stamping die #

With die casting molds, a flat sheet of metal is placed under a metal press that squeezes the metal with great force to form the desired metal shape. The metal press can be adjusted for bending, stamping, embossing, and even undercutting.

Stamping technology is simple and requires essentially no post-processing. However, due to the size of the press, stamping dies are mainly limited to producing metal products with simpler geometric designs and are not suitable for complex workpieces.

03 Differences between stamping and die casting molds and their processes #

suitability #

Die casting molds for high quality mass production. Due to its high level of precision, quality and repeatability, it is best suited for mass production. For example, the automotive industry produces cylinder heads, blocks and wheels.

Metal stamping produces simple, thin, lightweight and electrically conductive metal parts; therefore, it is mainly used in the telecommunications, automotive and electronics industries.

(manufacturing, production etc) costs #

We all like to work on budget-friendly projects, right? Wondering which techniques work well on a low budget? Let's take a look!

First of all, stamping is much cheaper than die casting systems. Additionally, stamping dies are used to produce machined simple metal parts with minimal design and manufacturing time, so more metal parts can be produced quickly, which is an affordable option.

Conversely, die casting produces complex designs that require more expensive machines and materials - cold chamber machines, hot chamber machines and die casting molds. Die casting technology can be quite expensive. However, die casting produces durable metal parts and is a long-term investment.

metal material #

The die casting process is suitable for billets of bar shaped metallic materials. Since the process involves melting of metals, metals with low melting points are required. These metallic materials are known as non-ferrous metals such as aluminum, copper, lead and zinc.

Metal stamping can be done with ferrous and non-ferrous materials in strip or sheet form, as it is a simple process that involves stamping and cutting sheet metal into its final shape. The stamping process does not need to be concerned with the melting point of the metal.