The agricultural machinery tool industry mainly uses blades made of metal materials in production. However, due to the harsh working environment of agricultural machinery, the core component of the rotary cultivator frequently bears wear and tear from quartz, plant silicates, weeds, crop straw, etc. during the working process. Impact, very easy to fail. According to incomplete statistics, more than 80% of agricultural soil-contacting parts are scrapped due to failure due to abrasive wear. The annual domestic consumption of rotary tillers alone exceeds 250 million. The problem of insufficient tool life of agricultural machinery has become increasingly prominent, which has seriously restricted the transformation and upgrading of domestic agricultural machinery to intelligent agricultural machinery. Laser cladding technology can effectively repair and strengthen these blades, allowing them to have a longer service life in harsh environments, improving agricultural machinery production efficiency and reducing production costs.

The current application of laser cladding technology in the agricultural machinery tool industry

Blade surface repair
Agricultural machinery blades often work in harsh environments, and surface wear and damage will inevitably occur. The traditional repair method is to re-sharpen the entire surface of the blade and then re-apply a thin layer, which wastes a lot of material. Laser cladding technology can be used to partially repair the blade surface, saving material usage and manufacturing costs. In addition, the surface of the blade repaired by laser cladding is smoother and harder, further improving the cutting performance.

Improve cutting
Laser cladding technology can also cast suitable alloy casting materials on the surface of the blade to form a surface that is tougher and more wear-resistant than pure steel castings, thus greatly improving the cutting performance of the blade. Blades treated with laser cladding technology can operate more stably in harsh working environments and maintain good cutting effects.

Laser cladding as a new surface repair process

Compared with traditional technology, the technological advantages in the agricultural machinery tool industry include the following aspects:

• High precision and efficiency
  The laser cladding process uses a high-energy-density laser beam for local melting, which can complete surface repair in a very short time. Its high-precision control system can achieve fine repair of minor damage, and can also control the placement and shape of materials, greatly improving the surface accuracy and standardization of the workpiece.
• Low-cost, high quality
  The laser cladding process only requires a small amount of substrate, which not only saves costs but also reduces the time and human resources required for production. Rapid cooling occurs when the material is melted on the surface. While ensuring the compactness of the cladding layer, it also improves its hardness and wear resistance, making the agricultural machinery tools after the surface repair longer have a longer life and better quality.
• High flexibility
  The laser cladding process is highly flexible. It can directly clad the required composite material onto the surface without changing the original material structure, and adjust the thickness of the melted layer to adapt to different working conditions, so the manufacturing process is very flexible. , can be customized according to specific needs to meet the manufacturing and repair requirements of different agricultural machinery tools.
• Wide range of applications
  The laser cladding process can be applied not only to the repair of metal materials but also to the repair of ceramics, ceramic-metal, metal-ceramic, and other composite materials. Due to its high efficiency, high precision, and low cost, it has been widely used in aerospace, engineering machinery, metallurgical industry, mold manufacturing, and other fields.

Cladding sample
In view of the technical problems of short service life and frequent replacement of rotary blades, our company has carried out research on the wear-resistant strengthening process of rotary blades.

Metallographic test
The laser cladding process was used to prepare 35%WC and 60%WC coatings on 65Mn steel. The results showed that the high-hard particles were more evenly distributed and burned less.

At present, Huirui has accumulated a lot of experience in cladding repair in the agricultural machinery tool industry and has formed a relatively mature and complete cladding process system in terms of high-strength workpieces, high wear resistance, and high impact toughness.

As people’s demand for modern agricultural production continues to increase, in the future, Huirui will continue to increase investment in-process research and development, improve processing quality and efficiency, and reduce costs, making the laser cladding process more suitable for small and medium-sized enterprises and manufacturers, and strive to provide The production of agricultural machinery industry provides more reliable, efficient and economical solutions.