During the processing of a toothed sleeve in our company's manufacturing workshop, an issue was identified where the internal spline and the central hole were misaligned due to a machining error. This resulted in a portion of the spline being missing, with the affected area reaching up to approximately 2mm in depth. Since all components of the product had already moved into the final assembly stage, and the delivery deadline was fast approaching, it was decided to proceed with repairs while ensuring that the product's performance would not be compromised.
As the toothed sleeve had already been completed, a detailed inspection was conducted using the machine tools available in the processing workshop. Each component was measured, and non-conforming areas were marked with a marker. The thickness of the missing material was also noted. Upon completing the inspection, it was found that apart from the lack of machining on one side of the internal spline groove (as shown in the drawing), all other dimensions were within the acceptable tolerance range. The defective area measured approximately 60mm by 400mm, with the machining loss ranging between 1 to 2mm.
**Weldability Analysis**
The material used for the toothed sleeve is 40CrNiMoA, a high-strength alloy steel commonly used in applications requiring excellent mechanical properties and toughness. Its chemical composition is listed in Table 1 below:
| Element | Content (%) |
|---------|-------------|
| Carbon (C) | 0.35–0.42 |
| Chromium (Cr) | 0.80–1.10 |
| Nickel (Ni) | 1.20–1.60 |
| Molybdenum (Mo) | 0.15–0.25 |
| Manganese (Mn) | 0.30–0.60 |
| Silicon (Si) | 0.15–0.35 |
The internal spline structure is shown in the image below for reference.
*Internal spline structure*
For more detailed information, please refer to the attached document or consult the 18th issue of *Metalworking (Hot Processing)*.
Best Quantum Board Led
The Quantum board growth lights IP65 is a plant growth lamp that uses quantum technology and is designed to provide the optimal spectral and light conditions required for plant growth. Compared with traditional LED Grow Light bars, the Quantum board of led grow light samsung chips can better simulate the spectrum of sunlight, and provide plants with more suitable light for their growth.
The Quantum board of the led grow lights uses the latest quantum technology to provide plants with the different spectra they need by precisely controlling the wavelength and intensity of light. This lamp has an adjustable spectrum function that can be adjusted according to the needs of different plants to provide the most suitable lighting conditions.
The Quantum board of the led growth lights also has the characteristics of efficient energy utilization and long life. They feature advanced LED light sources that provide higher light intensity with lower energy consumption. In addition, these lamps have a long life, with a service life of tens of thousands of hours, reducing the frequency and cost of replacing lamps.
Quantum board growth lights is widely used in indoor plant planting, greenhouse planting, plant research and other fields. They can provide continuous and stable light for plants and promote plant growth and development. Whether it is growing vegetables, flowers or other plants, Quantum plant lights can provide an ideal light environment to help plants grow healthily.
660nm &730nm led grow light for indoor plants,dimmable led grow lights,growth lights for indoor plants
Shenzhen Pvison Technology Co., Ltd. , https://www.pvisunggrowlight.com