Computer-controlled cutting
*CNC cutting
*How to keep safety
1, understand all the operation manual: before using the equipment, to fully understand and master the relevant instruction manual. When new equipment is introduced, the operating manual of the equipment needs to be studied and understood in detail.

2, keep the equipment clean: not only the machine tool itself, but also the working environment, should be kept tidy. Chips and debris should be cleaned up in a timely manner to avoid interfering with the operation of the machine or causing safety accidents.
3、Regular fine inspection: for example, check whether the oil rubbing plate on the machine tool guideway is worn out, whether the lubricant and coolant status is normal, if there is any problem, it should be replaced or supplemented in time.

4, equipment protection: for rotating cutting tools, belts and pulleys, high-voltage circuits, noise and compressed air and other safety hazards brought about by the preventive protection measures should be taken.
5, do not abuse the workbench: it is prohibited to use the machine tool workbench as other workbenches, such as temporary storage of miscellaneous items.

6, safe operation: do not use compressed air to blow off the machine parts, machine surfaces, cabinets, controllers or the floor around the machine chips.

7, pay attention to rest: prolonged operation of CNC machine tools may lead to fatigue, affecting judgment and operating ability. Therefore, proper rest is also an important measure to protect safety.

See website for details:
https://www.tukuppt.com/muban/zbokbdro.html
Video: https://www.bilibili.com/video/BV19X4y1U7oz?vd_source=fa1fa576a1a332d4070b678075b7d8f6
*Learn CNC
CNC technology is also called computer numerical control technology (CNC, Computerized Numerical Control), it is the use of computers to achieve digital program control technology. This technology uses computers to perform the logical control function of the operation sequence of the equipment's trajectory and peripherals according to the control program stored in advance.
As a result of the use of computers to replace the original hardware logic circuits composed of numerical control devices, so that the input operating instructions for storage, processing, arithmetic, logic judgment and other control functions can be achieved through the computer software to complete the processing of micro-commands generated by the servo drive device to drive the motor or hydraulic actuators to drive the equipment operation.
CNC professional is to cultivate mastery of CNC technology and application of basic theory, basic knowledge, can be engaged in the production of the first line of production, management, product marketing, equipment maintenance and other work needs of the application of senior technical personnel.
*CNC machine type
CNC machine tools is a digital control machine tools (Computer numerical control machine tools), is a program control system equipped with automated machine tools. CNC machine tools realize the complexity, precision, small batch, multi-species parts processing, is a flexible, high-performance automated machine tools, representing the direction of development of modern machine tool control technology.
There are many types of CNC machine tools, which can be categorized in different ways: according to the classification of process use, according to the classification of motion control mode and servo control mode, and so on.
*CNC lathe
CNC lathe is one of the more widely used CNC machine tools. It is mainly used for shaft parts or disk parts of the internal and external cylindrical surface, any cone angle of the internal and external conical surface, complex rotary internal and external surfaces and cylindrical, tapered threads and other cutting, and can be grooving, drilling, reaming, reaming and boring.

Application :CNC lathe is a high-precision, high-efficiency machining equipment, widely used in many fields, including automotive manufacturing, aerospace manufacturing, mold and die manufacturing, electronic equipment manufacturing, medical device manufacturing and energy equipment manufacturing.
CAK6150 CNC lathe
Stainless steel bar stock is added to the spindle through the jaws and clamped with hardened jaws with biting teeth on the surface to ensure that the workpiece does not slide.
C-type external round
V-shaped roughing cutter
V-shaped external cutter
Threaded tool lathe
slotter
Final product
*Make sure the machine
Reason for selection
1.Dimensional adaptability: CNC milling machines (machining centers) usually have a large workspace and flexible machining capabilities, which can adapt to the machining needs of gears of different sizes. Since you mentioned "not very large gears", the machining range of CNC milling machines should be sufficient to meet your needs.
2.High precision: CNC milling machines use advanced CNC technology to achieve high-precision machining. Modern CNC machining accuracy can reach the micrometer level, which is crucial for the tooth profile accuracy and fitting accuracy of gears.
3.Material adaptability: CNC milling machines can process materials of various hardness, including metals, plastics, etc. You need to choose the appropriate cutting tool and machining parameters based on the material of the gear.
4.Processing efficiency: CNC milling machines have an automatic tool changing function (if equipped with a tool library), which can greatly improve processing efficiency. By writing appropriate machining programs, multiple machining steps of gears can be completed at once, reducing machining time and cost.
Key points for selecting CNC milling machines
1.Machine specifications: Ensure that the selected CNC milling machine's workbench size and spindle power can meet the machining requirements of the gears.
2.CNC system: Choose a stable and reliable CNC system to ensure machining accuracy and stability.
3.Tools and fixtures: Select appropriate cutting tools and fixtures based on the material and size of the gears to ensure machining quality and efficiency.
4.Processing plan: Write appropriate processing programs, optimize machining paths and cutting parameters to improve machining efficiency and accuracy.
The CNC milling machine in the video, as a tool, provides many conveniences for the processing personnel.
*Make sure the material
In the video, a complex threaded part was processed using stainless steel, which is the most common metal raw material.
Material Definition
Stainless steel is an alloy steel mainly composed of iron (Fe) and at least 10.5% chromium (Cr), and may contain other elements such as nickel (Ni), molybdenum (Mo), titanium (Ti), and copper (Cu). Chromium is the most important alloying element in stainless steel, as it can form a dense layer of chromium oxide (Cr ₂ O æ) film on the surface of the steel, which can prevent further oxidation and corrosion of the steel, giving stainless steel excellent corrosion resistance.
The reason for choosing stainless steel as the raw material
  1. Corrosion resistance: Stainless steel has excellent corrosion resistance and can maintain constant corrosion resistance in air or corrosive media.
  2. High strength and toughness: Stainless steel exhibits high strength and toughness over a wide temperature range, enabling it to withstand various stresses and impacts.
  3. Processing characteristics: Although stainless steel may encounter some problems during the processing, such as severe work hardening, high cutting force, high cutting temperature, and easy tool wear, it can adapt to higher cutting speeds and optimize the processing by selecting appropriate tools, processing parameters, and surface treatment methods.
  4. Environmental protection and recyclability: The 100% recyclability of stainless steel provides a new way for environmental protection, which meets the requirements of modern manufacturing for sustainable development.
*Laser cutting
Laser cutting is the use of focused high power density laser beam irradiation workpiece, so that the irradiated material rapidly melting, vaporization, ablation, or to reach the ignition point, and at the same time, with the help of coaxial with the beam of high-speed airflow blowing off the molten material, so as to achieve the workpiece cut. Laser cutting belongs to one of the thermal cutting methods.
*How to keep safety
Overall environmental protection
Environmental settings: When using laser cutting machine, corners and baffles should be set up in the cutting area to avoid the laser's rebound from harming the human body.

Installation of protective facilities: the use of laser must be equipped with professional protective equipment, such as ultraviolet, laser and electromagnetic radiation protection devices.

Maintain the equipment: Regularly check and maintain the laser cutting machine to ensure that the equipment can operate normally and reduce the occurrence of accidents.
Personal protection
Wear protective eyewear: the operator must wear qualified laser protective eyewear, which can effectively prevent the laser beam from harming the eyes.

Wear protective gloves: During operation, protective gloves should be worn to avoid injury to the hands from laser radiation.

Wear suitable protective clothing: suitable protective clothing is required to prevent laser burns or burns to the skin.
Machine operation
Caution: When using the laser cutting machine, it must be operated cautiously to avoid harm caused by accidental misoperation.

Cutting area protection: For the cutting area, it should be operated in strict accordance with the operation procedure to prevent the laser from irradiating the irrelevant area.

Standardized operation process: In the operation process, the laser cutting machine must be operated in accordance with the standardized process, and the operation process or operation parameters must not be changed at will.
*Different kind of material which can be manufacture by laser cutting
stainless steels

Acrylic

Glass
stainless steels cutting
1. Preparation: Determine the cutting size, workpiece surface cleanliness and flatness, and choose suitable cutting machine and equipment.

2. Setting parameters: Adjust the laser power, scanning speed, gas flow and other parameters according to the material thickness, material, cutting shape, processing requirements and other factors.

3. Preheating and pre-melting: Before the laser beam irradiates the workpiece, inert gas is sprayed to the surface of the workpiece through the nozzle to increase the surface temperature and reduce the influence of the laser beam on the workpiece when cutting.

4. Cutting and processing: The laser beam focuses on the surface of the workpiece, melting and vaporizing the stainless steel material through the action of high temperature and high energy to form the cutting opening.

5. Cleaning and processing: Remove the iron filings, oxides and other impurities generated during the cutting process, and polish and paint the cutout to improve the surface quality.
Acrylic cutting
1. Preparation: Check whether the laser cutting machine works properly, adjust the cutting parameters to ensure the cutting quality.

2.Measuring and marking:Use ruler and pencil to measure and mark on the acrylic board to determine the position and size to be cut.

3. Fix the acrylic board: Fix the acrylic board on the working table of the laser cutting machine to ensure safety and reliability.

4. Set cutting parameters: according to the thickness of the acrylic plate and cutting requirements, set the laser cutting parameters, including power, speed, etc..

5. Start cutting: Start the laser cutting machine, let it cut according to the preset parameters.

6. Observe the cutting process: During the cutting process, observe the cutting status to ensure the cutting quality.

7. Remove the cut pieces: After the cutting is completed, carefully remove the cut acrylic pieces.

8.Remove residue:Clean up the residue in the cutting area to keep the working environment tidy.
Glass cutting
1. Confirm the type of glass and obtain information on the material and thickness of the glass. 2.

2. Prepare fine dust cloths and items to wipe the glass surface to ensure that the surface of the glass is clean.

3. Post signs and set up isolation zones in the cutting area to remind the surrounding personnel to pay attention to safety.

4. Design and adjust the cutting pattern, and import the required cutting pattern into the laser cutting machine.

5. Fix the glass on the cutting table and adjust the angle and position.

6. Start the laser cutting through the control system of the laser cutting machine.

7. According to the set cutting pattern, the laser cutting machine will automatically carry out cutting until the whole pattern is completed

8. Turn off the light cutter and wait for the cut glass to cool down.

9. Remove the remaining edges and rusty places around the cutting pattern to ensure the glass surface is smooth.

10. Grind or polish around the cutting pattern to improve the appearance of the glass.