Bending Craft Code

Bending Craft Code

●Basic knowledge of bending

1.Introduction to bending machine.

At present, more than 95% of the bending machines are hydraulic bending machines, which are divided into two categories according to the different movement modes:Up and down.

2. Material classification.

The general sheet metal processing materials are divided into three categories: steel, stainless steel, aluminum, the same material is divided into different types due to the content of various internal elements and processing methods.

We divide the commonly used steel into: hot rolled sheet, cold rolled sheet, electrogalvanized sheet, hot dip galvanized sheet.

Commonly used stainless steel is divided into: SUS3000 series (304), SUS4000 series (403).

3. Bending mold.

3.1Bending mold:

The general mold is divided into an intermediate plate, an upper mold, a lower mold, a guide rail, a lower mold base, and the like, these types of molds are versatile and can be processed in most cases.

3.2Bending mold selection:

Different molds are required to machine different parts. First, the machining parameters of the machine and the mold must be known to select the matching molds.

Machine parameters include: stroke, machining capacity, opening height, intermediate plate type, etc.

The mold parameters are: upper mold mold shank type, pressure tonnage, etc.

3.2.1 About the choice of machine parameters:

Stroke = opening height - intermediate plate height - upper die height - lower die seat height - (lower die height - 0.5V + t).

t is the thickness of the sheet.

When selecting the lower mold base, also pay attention to the different heights of the lower mold base. The mold bases of different heights are used to match different processing.

Different mold combinations can be used to obtain different mold heights to process different parts.