The cutting tools used on the CNC milling machine should be selected according to the material, geometry, surface quality requirements, heat treatment status, cutting performance and machining allowance of the processed parts, cnc milling service ，and choose the tools with good rigidity and high durability.

Type selection of milling cutter: According to the geometry of the part being machined, the types of cutters selected are:

1. When machining curved parts, in order to ensure that the cutting edge of the tool and the machining contour are tangent at the cutting point, and to avoid interference between the cutting edge and the contour of the workpiece, a ball-end knife is generally used, a two-edged milling cutter for rough machining, semi-finish and fine Four-flute milling cutter for machining.

2. When milling a large plane: In order to improve production efficiency and improve the surface roughness of the machined surface, insert-type disc milling cutters are generally used.

3. General-purpose milling cutters are generally used when milling small planes or stepped surfaces.

4. When milling the keyway, in order to ensure the dimensional accuracy of the groove, a two-edged keyway milling cutter is generally used.

5. Hole processing tools such as drills and boring cutters can be used for hole processing.

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Is there any difference between silicone thermal insulation gloves and ordinary gloves? What are the differences between silicone heat-insulating gloves and ordinary gloves? This article will give you the answer.

Ordinary gloves
1. Easy to cause burns, 2. Oily, non-waterproof, and heat-resistant, 3. Heavy smell, 4. Unsafe

Silicone insulated gloves
1. High temperature resistance up to 250 degrees; custom silicone mold manufacturer ，2. The product material is softer, comfortable to the touch and comfortable to wear; 3. Variety of colors and specifications, novel styles, fashionable and avant-garde; 4. Silicone insulated gloves, mainly low-carbon environmental protection Concept, strong practicability. 5. Not afraid of being burned by heat, super absorbent silicone heat-insulating gloves on both sides; 6. non-sticky water, non-sticky oil, good toughness, not easy to tear, can be reused many times and easy to clean;, 7. used Oven, microwave or refrigerator, etc., are no problem, easy to freeze and high temperature environment; 8. Non-toxic, odorless, insoluble in water, 100% pure silicone material is safe, and has passed FDA food certification.

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A racing helmet is one of the most important protective devices for racers. Every detail can affect the protective performance of the helmet. How big is his role as a protective goggles as a window of the eye?

Goggles are transparent lenses that can rotate upward on the front of the helmet. They are generally made of high-strength Lexan resin material, which can withstand the impact of external objects, and can prevent fogging and misleading vision. The field of vision of racing helmet goggles is much narrower than that of motorcycle helmets. This is a majestic way to prevent too wide field of view from affecting the judgment of racers; according to FIA safety requirements, goggles must be able to withstand speeds up to 500 km/h from the track The impact of flying small particles; when the goggles use the 1.2g bullet of the air gun to shoot the lens, the bullet cannot penetrate the inside of the helmet; the coating of the goggles must also be tested to ensure that the visual effect of the goggles will not change or be distorted.

The inner surface of the goggles is coated with a special light-colored paint. The purpose is to prevent visual misleading to the drivers due to changes in light on the track, and to distinguish clearly the changes on the track. In addition to special coatings, the anti-fog treatment of the goggles is also a top priority. motocross goggles The lenses used in F1 racing cars will have special anti-fogging materials added to ensure that they will not be caused by the breathing of the racer and other external parts during the movement. Factors cause the vision of the lens to be unclear.

During the design process, the engineers tried their best to minimize the optical distortion. The object is distorted in shape); in addition to the improvement of optical distortion, there is another important design on the goggles-the adhesive tape, which is fixed by the film knob on the lens, and can be removed and replaced at any time; it The role of the lens is that when the outside of the lens is affected by foreign objects such as dust or rain, the rider can tear it off to get a clear line of sight again. What we see in the usual race is what the driver tears off by hand. This is the layer of adhesive tape. One end of the rubber strip is usually rolled up and has a circular hole, so that it can be easily torn off by riders wearing thick gloves. In addition, this kind of rubber strip usually has more than one layer, and the rider can use it many times. Tear off to get a clear line of sight.

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