Dalian Fuhong Machinery Co., Ltd

标签： Cutting tools

  • Machining Center Cutting Tools And Application Knowledge

    Machining Center Cutting Tools And Application Knowledge

    Machining center cutting tools and application knowledge

    The root cause of poor CNC machining accuracy is often not caused by the program, but by the "cutting corners" in the tool itself.

    Tool geometric accuracy must meet standards

    The cutting edge profile accuracy will have a direct impact on precision machining, causing the final surface quality to change. Once the grinding process is not accurate enough, radius deviation will exist, and the machining size will be out of control.

    In the actual production process, a large number of manufacturers only focus on the tool coating and material, but completely ignore the geometric accuracy of the cutting edge. There is a situation where if the accuracy of the tool does not meet the corresponding standards, no matter how well the CAM path is set, it is impossible to process products that meet the qualified requirements.

    Control radial runout error

    The overhang length of the tool holder must be within the specified range, and the overhang length of the tool system must also be within the specified range. This is a prerequisite for ensuring the smooth operation of the spindle. Regarding radial runout error machining center cutting tools and application knowledge, separate inspections must be carried out at the tool holder and at the cutting edge.

    CNC铣削刀具路径类型_保证刀具径向跳动误差最小方法_高速切削刀具几何精度

    Severe vibration of the spindle will be caused by excessive runout, which will accelerate tool wear and even cause tool breakage. Regular inspection of the coaxiality of the tool system is an effective means to reduce the scrap rate.

    Choose the right cutting tool

    The first thing to do is to analyze the workpiece material characteristics, which include key measurement criteria such as hardness, flexibility, heat conduction performance, etc. CNC milling tool path type , and then select the tool. Different types of materials have greatly different requirements for tool materials and coatings.

    Secondly, it is necessary to take into account the requirements of the processed surface quality, the accuracy level, and the production cost budget. Under the premise of meeting the process requirements, only by selecting the most cost-effective tool solution can we create the greatest value for the enterprise.

    High speed cutting parameter calculation

    There are three important formulas, which belong to the category of high-speed cutting and are used to calculate cutting speed, feed , CNC milling tool path type , and material removal rate. Mastering these formulas is the basis for reasonably setting processing parameters.

    Many programmers set parameters at will based on experience. As a result, either the efficiency is low or the tool life is short. The correct calculation method can more than double the processing efficiency and significantly extend the service life of the tool.

    Analysis of key processing parameters

    高速切削刀具几何精度_保证刀具径向跳动误差最小方法_CNC铣削刀具路径类型

    The cutting speed Vc of the recommended value provided by the tool supplier is the most core parameter. It can also refer to experimental data, or based on the accumulation of self-built databases. The Vc value will have a direct impact on surface finish and tool life.

    Deff CNC milling tool path type , which is the effective tool diameter, and fz, which is the feed per edge, are also of importance that cannot be ignored. ap, which is the axial feed amount, and ae, which is the radial feed amount, need to be comprehensively determined based on the spindle rigidity, tool strength and material properties, and cannot be set arbitrarily.

    S136 Material Cutting Test

    This test uses a tool with a diameter of 10mm, six edges, and is coated with TiAlN coating to verify the cutting ability of S136 mold steel. The data obtained from the test can provide a reference for processing similar materials.

    After actual testing, it has been verified that it is necessary to accurately set parameters, select precise tools, and continuously adjust and optimize parameters during different working conditions to successfully find a most suitable processing plan. The true meaning of this conclusion is the importance of parameter setting and tool selection.

    In the actual machining process, have you ever encountered the problem of too much tool vibration, causing the tool to vibrate? You are welcome to leave a text about your experience and solutions. If you think it is useful, please like it and forward it to more practitioners in the same field!

  • Boring Operations: Definition, Process, Uses And Types

    Boring Operations: Definition, Process, Uses And Types

    Boring operations: definition, process, uses and types

    Differences in Selection of Lathes and Milling Machines

    In the category of boring processing, lathes and milling machines are the two dominant equipment. During the operation of the lathe, the workpiece is in a rotating state and the tool is in a fixed state. This situation is suitable for processing parts with symmetrical characteristics. The situation of milling machines is the opposite. The workpiece is in a fixed state and the tool is in a rotating stage, which can more flexibly cope with the processing needs of complex positions. In 2025, a survey conducted by a mechanical processing factory showed that 70% of the factories will be equipped with both types of boring equipment in order to cope with the requirements of various orders.

    Which equipment to choose is determined by the location of the hole and the shape of the workpiece. For example, when processing engine blocks, milling machines are more commonly used because the holes are distributed in multiple planes. However, when processing shaft parts, the efficiency of lathes is higher. The operator needs to make judgments based on the specific drawings, otherwise the accuracy may be affected.

    Tool selection is a critical step

    Before carrying out the boring operation, the operator must select the appropriate tool according to the hole diameter and material. Among them, carbide tools are suitable for cutting steel parts, while ceramic tools are specially used for high-temperature alloy processing. According to the 2024 industry report, if the tool selection is incorrect, it will cause the scrap rate to exceed 15%, thereby increasing costs.

    The size of the tool also needs to be accurately matched. For example, the diameter of the pre-drilled hole is 20 mm, the development trend of the boring processing industry , then the diameter of the tool should be slightly smaller than this value, and the tool holder must be tightened during installation to avoid vibration. There was once a factory where the inner hole was scratched due to loose tools, and the time spent on rework wasted 3 shifts.

    Don’t be careless when clamping workpieces

    镗孔加工车床操作_镗孔铣床加工步骤_镗削加工行业发展趋势

    The basis for successful boring is workpiece clamping. When using a lathe, the chuck or collet must be firmly fixed to prevent displacement during rotation. Milling machines often use a vise or pressure plate to ensure that the workpiece is in a stationary state. According to the accident records of a machinery factory in 2023, workpieces flying out due to improper clamping accounted for 12% of equipment accidents.

    The clamping force needs to be checked regularly. For example, for thin-walled parts, excessive clamping will cause deformation. Operators should use a torque wrench to keep it within standard limits. In daily maintenance, it is also very important to clean the clamping surface. To prevent oil stains from affecting the friction, the punctuation is full stop.

    Cutting parameters must be set accurately

    Spindle speed, feed rate and cutting depth have a direct impact on processing quality. For small apertures, high rotational speed is more appropriate; for large apertures, low rotational speeds are more appropriate; if the feed rate is too fast, the tool will be damaged; if the feed rate is too slow, efficiency will be reduced. According to what industry data shows in 2024, optimizing parameters can improve production efficiency by 20%.

    The hardness of the material is the main basis for setting parameters. For example, when processing aluminum alloy materials, the rotation rate can reach 3,000 rpm. However, when processing stainless steel materials, the rotation rate needs to be reduced to 800 rpm. The person responsible for this operation should refer to the table recommended by the tool manufacturer and make minor adjustments based on the actual test cutting results.

    Operating details of the boring process

    镗削加工行业发展趋势_镗孔加工车床操作_镗孔铣床加工步骤

    When boring is performed on a lathe, the boring bar is inserted into the pre-drilled hole, the workpiece rotates, and the tool cuts the inner wall. The operator must control the feed rate so that the depth of each cut does not exceed 0.5 mm. A training case presented in 2025 showed that the tool broke due to excessive depth when operated by a novice, and the cost of replacing the tool reached 200 yuan.

    Milling machine boring is achieved by the spindle rotating boring bar, and the tool advances the boring process industry development trend along the axial direction, increasing the hole diameter step by step. It is necessary to pay attention to the continuous supply of coolant to avoid overheating. A certain workshop uses an automated cooling system, which increases the tool life by 30%.

    Industry trends bring new changes

    Boring processing is moving towards automation and intelligence. Market research shows that in 2025, CNC boring machine sales will increase by 15% year-on-year, and manual operations are gradually reducing. Multi-axis linkage technology allows complex hole systems to be formed at one time, thus saving clamping time.

    Industry standards are also in a state of upgrading. For example, the ISO 9001 quality certification has more stringent requirements for tolerance control. For this purpose, the factory has invested in online testing equipment and equipment to monitor the aperture in real time. In the future, operators will need to have programming skills to adapt to the uncontrolled workshop environment. This situation provides a new direction for enterprises to reduce costs and improve efficiency.

    As for your factory, have you already begun to introduce CNC equipment to improve the boring efficiency? You are welcome to share your relevant experience in the comment area, and through likes and forwarding, so that more peers can see it!