Metal Stamping
VIDO SERIVCES
What Is Stamping Part ?
Stamping is a forming and processing technique which entails the application of external force onto sheets, strips, pipes, and profiles through the use of presses and dies. This method triggers plastic deformation or separation, ultimately resulting in workpieces (also known as stampings) boasting the targeted shapes and sizes.
The stamping process within mold manufacturing can yield numerous scenarios which might be perplexing for many. To shed some light on this, I will outline the most frequently encountered stamping processes. They include:
- Blanking
This is a broad term for a stamping process that involves separating a material into different parts. It includes blanking, punching, notching, grooving, cutting, shear cutting, trimming, slitting, and more. - Shaping
Primarily, it’s a stamping process that trims off surplus material around a shape to meet size requirements. - Partial Cutting (Tongue Cutting)
This process involves creating a hole in a part of the material without separating it entirely. Typically, only three sides of a rectangular section are cut, leaving one side untouched. The main purpose is to establish step distances. - Flaring
This uncommon process mostly applies to tubular parts that require expansion at certain points, ultimately creating a flare-like shape. - Constricting
Contrary to flaring, constricting is a stamping process that requires a tubular part’s end to be tapered inward. - Punching
This creates hollow portions in a piece by separating material using a punch and a die edge through the complete material. - Fine blanking
This term applies when a stamping part requires a high-quality section, showcasing a complete and bright band. Note that ordinary punching sections are segregated into four parts: slump band, fracture band, bright band, and the burr area. - Full bright blanking
Unlike fine blanking, full bright blanking aims to achieve a bright band in a single-step blanking process. - Deep hole punching
This term refers to the process where the hole diameter in the product is smaller than the material thickness. The challenge here is that punches are liable to break. - Embossing
In this process, a special pattern is stamped onto the material surface using a punch. - Forming
Many friends understand forming as bending, which is not rigorous. Because bending is a type of forming, forming refers to the general term for all fluid material processes - Bending
As a conventional process, bending alters the flat material to a specified angel and shape through plastic deformation using concave and convex die inserts. - Compression bars
This is generally used in sharp-angle bending forming inserts. It is mainly a structure that reduces the rebound of the material and ensures the stability of the angle by punching the material at the bending position. - Embossing
A process in which a special pattern is pressed on the surface of the material through a punch. Commonly include: embossing, pitting, etc. - Roll
One of the molding processes is a process in which the shape of the product is curled into a circle picture - Flip hole
The process of inverting the inner hole of the stamping part to obtain a side of a certain height - Leveling
It is mainly aimed at the situation where the product flatness is required to be high. When the flatness of the stamping parts is out of tolerance due to the stress, the leveling process needs to be used for leveling. - Plastic surgery
After the product is formed, if the angle and shape are not the theoretical size, it is necessary to consider adding a process for fine-tuning to ensure the stability of the angle. This process is called “shaping” - Deep drawing
It usually refers to the process of obtaining hollow parts from flat materials by means of a drawing process, which is mainly completed by convex and concave dies.
picture - Continuous deep drawing
Usually refers to a stretching process formed by stretching the material in the same position multiple times through one or several dies in a material belt - Thinning and deep drawing
Continuous drawing and deep drawing belong to the thinning drawing series, which means that the wall thickness of the drawn part will be less than the thickness of the material itself. - Drawing
The principle is similar to that of the convex hull, which is to make the material convex. However, drawing usually refers to automobile parts, which belong to a relatively complex forming series, and its drawing structure is also relatively complex.
picture - Engineering model
In a set of molds, one stamping process can only complete one stamping process. - Composite mold
The general term for the molds that can complete two or more different stamping processes in one stamping process in a set of molds - Progressive die
A set of molds is fed by a material belt, arranging two or more processes in sequence, and feeding in sequence with the stamping process to finally reach a general term for mold types of qualified products