Defects of inner plate Stamping Parts
Identification and Judgment of Quality Defects of Inner Plate and Outer Plate
Identification and Judgment of Quality Defects of Outer Plate
Inspection Method of Outer Plate and Use of Inspection Tools
For the exterior panel, the requirement is higher, and it can not have obvious defects. The cracks and dark cracks of the inner plate can not occur.
For deep drawing parts, first check whether the pressure point is clear, then check whether there are cracks, and then touch by hand, push with oil stone.
Analysis of the Reasons for Waste Products
A The poor quality of raw materials
Installation, adjustment and improper use of B die
The C operator did not properly feed the strip along the positioning line or did not have a guarantee strip.
Material feeding according to. fixed gap
D punching die has gap change or working parts and guide due to long-term use.
Abrasion to parts
The E punching die is secured by loosening the fastening parts due to the long time of shock and vibration.
Relative change of loading position
F operator negligence, did not operate in accordance with the operating procedures.
Major measures for waste prevention
A Raw materials must be in conformity with the specified technical conditions (strict inspection of the specifications and grades of raw materials, under conditions of high dimensional accuracy and surface quality requirements of the workpiece for laboratory inspection).
B For the process specification
C. The press, die and other tooling equipment used in C should be guaranteed to work under normal working conditions.
D. Strict inspection system should be established in the production process, and the first part of stamping parts must be set up.
Comprehensive inspection, inspection qualified before putting into production, while strengthening patrol inspection, when an accident occurs, emergency handling.
E Adhere to civilized production system, such as workpiece and billet transmission must be appropriate
Workpiece tools, otherwise will crush and scratch the surface of the workpiece affect the surface quality of the workpiece.
F in the stamping process to ensure the cleanliness of the die cavity, the workplace to sort out the orderly processing of the workpiece to be placed neatly.