Metal tool forgings have a wide range of applications in industry and daily life, such as pliers, screwdrivers, hammers and so on. The production quality control and inspection of these forgings are crucial to the quality, performance and reliability of the products. This paper will introduce the background of production quality control and inspection of metal tool forgings, and discuss how to strengthen production quality control from the aspects of material selection, processing technology, production flow, as well as common detection methods, quality assessment and future prospects.
- Background introduction
With the intensification of market competition and the increasing attention of consumers to product quality, the production quality control and detection of metal tool forgings is particularly important. The quality of forging directly affects the performance and service life of the tool, and even relates to the safety of the operator. Therefore, the strict control and testing of the production process and the quality of the finished product of the metal tool forgings has become the key for manufacturing enterprises to improve product quality and market competitiveness.
- Production quality control
Material selection control
Material selection is the first step in quality control of metal tool forging production. Manufacturing enterprises should select appropriate materials according to product use requirements and performance requirements. In the process of material selection, it is necessary to pay attention to the mechanical properties, chemical composition, process properties and other factors of the material, and ensure that the quality of the material is stable and reliable. For key parts, such as jaws, knife edges, etc., alloy steel or special stainless steel with excellent properties should be selected.
Process control
Processing technology is one of the key factors affecting the quality of metal tool forgings. When manufacturing enterprises develop processing technology, they should fully consider the rationality and feasibility of the process to ensure that they can produce products that meet the quality requirements. At the same time, it is necessary to develop effective process measures for the links that are prone to quality problems, such as heating, deformation, cooling, etc.
Production flow control
The control of production process is an important guarantee for the stable production quality of metal tool forgings. Manufacturing enterprises should clarify all links and steps in the production process, establish strict production management systems and operating procedures, and ensure that the quality control of each process is in place. In addition, the use of modern production management systems, such as digital factories, industrial Internet of Things, etc., to achieve real-time monitoring and data analysis of the production process, help improve production efficiency and product quality.
- Detection methods
In order to ensure that the quality of hardware tool forgings meets the requirements, manufacturing enterprises need to take effective testing methods for comprehensive testing of products. The following are some common detection methods and application scenarios:
Appearance inspection: Carefully observe the surface of the forging through visual, magnifying glass or scanner means to detect whether there are cracks, pores, inclusions and other surface defects.
Dimensional measurement: Use measuring tools such as calipers, micrometers, etc., to accurately measure key dimensions of the forging to ensure that the dimensional accuracy meets the design requirements.
Chemical composition analysis: The chemical composition of the forgings is tested by spectral analysis, titration and other methods to ensure that the material composition meets the expectations.
Non-destructive testing: The use of ultrasonic, radiation, magnetic powder and other methods of non-destructive testing in order to find the surface or internal defects.
Mechanical properties test: tensile, impact, hardness and other tests are carried out on forgings to assess whether their mechanical properties meet the requirements of use.
In the actual testing process, the appropriate testing method should be selected according to the specific product and quality control needs, and the test data should be recorded and analyzed in detail. If there are unqualified products, immediate measures should be taken to trace and deal with them to prevent the problem products from entering the market.
- Quality assessment
Through the quality assessment of hardware tools forgings, we can fully understand the quality level of products and existing problems. The following are commonly used indicators for quality assessment:
Pass rate: Through sampling testing of products, calculate the ratio of the number of qualified products to the total number to assess the overall product quality level.
Nonconforming rate: Calculate the ratio of the number of nonconforming products to the total number in order to identify problems and take improvement actions.
