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Mild Steel Machining

  • 材料に関する専門知識: We work on familiar mild steels such as 1018, 1045, and 12L14, and optimize tools and machining plans.
  • Precise Machining:(±0.01mm) Tolerances achievable by applying multi-axis CNC machining and precision tool control.
  • Excellent Surface Finishes: Get a smooth finish or matted texture to get the best welding, 絵画, コーティング, or assembling experience.
  • Full Service: DFM consulting through to secondary welding work and plating, we are behind your project.

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    カスタムパーツのお見積り

    TOPSプレシジョンでは, our mild steel machining capabilities help fulfill industrial and commercial parts requirements. 結果として, our factory uses complex CNC milling, 旋回, and milling practices to generate high-quality and durable mild steel components smoothly and economically. In prototyping or when taking the step into small runs and up to large-scale output, we provide outstanding dimensional accuracy and repeatability. Characteristic features of our Mild Steel Machining Services are;

    What is Mild Steel CNC machining?

    Mild steel CNC machining is the application of computerized equipment to produce parts by milling, 旋回, 掘削, or tapping low-carbon steel alloys (usually less than 0.25% 炭素). It achieves a combination of precision tooling and material-specific parameters to provide fabricable, economical, and trustworthy parts. These industries can be construction, オートメーション, and machine building.

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      Properties of Mild Steel Material

      Mild steel grades come with special features, 被削性, and treatability. A brief listing of the flavor of the day with the most important mechanical properties:

      1. 抗張力

      Mild steel has moderate tensile strength, つまり, 370 に 570 megapascals. This value depends on the grade. This enables it to resist high stretching or pulling loads. It can fail at high stretches or pull forces, and it is suitable as a structural frame, shaft, and load-bearing component, where bending stiffness and strength are important factors.

      2. 降伏強さ

      The yield strengths of mild steel vary between 250 MPa (A36) そして 415 MPa (104,5). このほかにも, the metal holds its shape at pressures until a point when a critical load is attained. That implies that it can withstand a large amount of stress without permanent deformation. したがって, it is essential in parts such as gears, 括弧, とファスナー.

      3. 延性

      Mild steel is also very ductile, enabling it to be easily drawn, bent, or stretched due to its ductility. This is suitable for forming, ローリング, and stamping operations. It is also very ductile with high weldability and has less chance of material failure under dynamic and impact loads.

      4. 被削性

      Mild steel machines with ease in grades 12L14 and EN1A, where the former is commonly used in the leaded grades and the latter has much less wear of tools. This property minimizes the time and cost of production, making the material of choice for precision-turned parts, 継手, as well as large-scale CNC operations.

      5. 溶接性

      Mild steel has a low level of carbon content, thus making it weldable, utilizing different welding skills like MIG, ティグ, and arc welding. Welds are generally tough and ductile with little chance of cracking and brittleness, which is significant in structural and constructed assemblies.

      6. 耐衝撃性

      Mild steel can absorb shock loads without fracturing because it is impact-resistant. This qualifies it as a dependable material in such dynamic places as construction machinery, 自動車部品, and mechanical linkages.

      7. 耐食性 (低い)

      A drawback of mild steel is its comparatively low corrosion resistance. It can rust easily in the presence of moisture or hostile conditions unless painted, galvanized, or powder-coated. This disadvantage can be overcome using surface finishing.

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        Different Common Mild Steel Grades and Their Properties

        The following are the different grades and their properties of Mild Steel;

        学年

        抗張力

        降伏強さ

        主要なプロパティ

        1018

        ~440 MPa

        ~370 MPa

        多用途, cold-formed, 簡単に溶接可能

        1020

        ~420 MPa

        ~350 MPa

        厳しい, moderately strong, easily machined

        1045

        ~570 MPa

        ～415MPa

        Medium carbon, より強い, heat-treatable

        12L14

        ~440 MPa

        ~370 MPa

        High-speed machinability, 低ツール摩耗

        A36

        ~400–550 MPa

        ~250 MPa

        General purpose, good weldability, structural use

        EN1A (1215)

        ~370 MPa

        ~280 MPa

        Ideal for CNC turning, ultra-fast machining, 厳しい公差

        4140

        Up to ~655 MPa (treated)

        ～415MPa

        Excellent fatigue strength, 耐摩耗性, and impact toughness

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          Different CNC Processes of Mild Steel

          The machinability of mild steel means that nearly any CNC operation can be used to produce complex shapes, fine finishes, and close tolerances. The following are the most popular CNC approaches that are customized to provide precision mild steel parts:

          1. CNCフライス加工

          CNC milling is best suited for the shaping of flat surfaces, スロット, ポケット, ts, and very complex 3D contours on mild steel. Top precision means that you have multi-axis milling machines that can be used to do operations at high speed and with an excellent degree of dimensional accuracy, and hence, 括弧, エンクロージャ, as well as complex housings, can be produced by TOPS Precision.

          2. CNC旋削加工

          The machining is applied in the production of accurate cylindrical components like the shafts, ピン, とブッシュ. The CNC turning process starts with a rotating workpiece material, which is made of mild steel, with a fixed tool cutting away the material and allowing the machine to make smooth surfaces, concentric features, 厳しい公差.

          3. 掘削 & タッピング

          Holes of different sizes are formed by drilling, and internal threads are built by tapping. These are basics in the production of mild steel assembly components and may usually be utilized in fastener holes, threaded ports, and fluid passages of the mechanical assembly.

          4. リーミング & つまらない

          To ensure that the holes are drilled with high precision in applications, reaming and boring are used to finish holes with precise size and fine surface finishes. The methods are especially applicable in cars and mechanical-related products with high tolerance requirements in fit and alignment.

          5. Thread Milling and Thread Turning

          Both procedures help in the making of accurate, long-lasting threaded aspects. Thread milling is versatile; the tools are durable, and thread turning is effective with big or even deep cuts. The methods guarantee good mechanical locks and thread repeatability.

          6. Chamfering & バリ取り

          Chamfering is then done after machining to provide angled surfaces to be assembled easily and deburring is used to clear edges and burrs. These final touches increase safety, make the part presentable, and make it ready to be coated or have other work done.

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            Types of Finish Available to Mild Steel Components

            Finishing plays a very important role in improving the durability, パフォーマンス, and aesthetics of machined mild steel products. Defining the characteristics of different applications, TOPS Precision provides its customers with a variety of post-machining processes according to the specific industry needs and functional requirements.

            1. Oil/Water-Based Coolant Application

            Oil-based or water-based coolants can be used during and after machining to control the heat, minimize the generation of friction, and extend the tool’s life. The fluids can also help with the best finishes on surfaces as they wash away the chips and reduce thermal distortion, which is of utmost importance in precision on finer tolerance parts.

            2. Deburring Chamfering

            Deburring removes sharp edges, any residual burrs welded on the part, and tool marks and chamfering provides bevel edges on the part. They are necessary to prepare the components to be safely handled (using lubricants, excluding harmful substances, 等), conveniently assembly-compatible (using a uniform assembly coating), and visually clean.

            3. 熱処理

            Wear resistance and hardness of mild steel parts can be greatly enhanced by heat treatment, つまり, through induction or furnace hardening. It is particularly useful in the drive parts, cam, とツール, which are flexed regularly with mechanical pressure. We also have specific heat treatments depending on the functional needs of the parts.

            4. コーティング & Surface Treatments

            Some of the available protective coatings proposed by TOPS consist of zinc plating, 粉体塗装 & 絵画, and even anodizing service (where suitable alloyed parts are involved). Such finishes reduce corrosion, increase the hardness of surfaces, improve looks, and prolong the service life of outdoor or harsh environment parts.

            5. 溶接 & Contrivance

            In assembled structures or those structures that are fabricated, we offer welding services that give strength and accuracy along with clean joints. Our fabrication design is such that whether you are manufacturing mild steel frames, エンクロージャ, and/or parts of machinery, the parts are welded within the required dimensions and mechanical specifications.

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              Advantages of mild steel machining

              Mild steel has an advantageous performance-cost-machinability combination; it is appropriate in the cases of prototypes as well as high-volume runs. Here are some of its pros;

              • Low Cost & Readily Available –Low cost and can be supplied consistently.
              • 良好な被削性 – The availability of a wide range of cutting tools and short cycle times.
              • 厳しい & 耐久性のある- Can withstand heavy-duty operations.
              • カスタム仕上げ- provides welding, コーティング, and plating as necessary.
              • Scalable Manufacturing-Efficient both in small production and large carry-outs.

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                Design Guide for Mild Steel Machining

                Practical machining design and cost-effective manufacture require adherence to practical design principles that take into consideration the material properties of mild steel. Correct geometry, 許容範囲, and supports will also alleviate tool wear, part distortion, and a lasting part.

                特徴

                Recommended Guideline

                Reason

                肉厚

                ≥ 2 mm

                Prevents warping and ensures part strength

                切り身

                Internal radii ≥ 0.8 mm

                Reduces stress and tool wear

                Hole Design

                Depth ≤ 5× diameter

                Ensures drill stability and clean holes

                ねじ切り

                Standard threads with relief grooves

                Improves tap life and thread quality

                許容範囲

                ±0.01 mm to ±0.05 mm

                Balances precision and cost

                Slot Width

                ≥ 3 mm (ツールの直径)

                Prevents tool breakage and aids in chip removal

                Engraving/Marking

                Depth ≥ 0.5 mm, width ≥ 1.5 mm

                Improves visibility and durability

                Boss Height

                ≤ 3× boss diameter

                Maintains structural stability

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                  Challenges to Mild Steel Machining

                  In spite of its versatility, mild steel has a few machine problems, which must be tactfully addressed.

                  • The buildup of heat – Needs to be well-cooled to prevent warping.
                  • 工具の摩耗 – Tool wear is a particular problem, particularly when using alloy grades or hardened grades.
                  • Burr Management– The risk of burr is high and should be removed.
                  • Rigidity Required – Good fixturing was necessary to hold still.
                  • Chip Disposal –Iron filings must be carefully removed and cleaned.

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                    Applications of Mild Steel Machining

                    The versatility, 強さ, and cost-effectiveness of mild steel have made it an all-time favorite material across several industries. Its applications are wide-ranging, consistent in terms of structure, and involve making precision mechanical parts.

                    • 自動車:括弧, シャーシ, 部品, サスペンション部品.
                    • Robotics and automation: rails, mounts, tooling fixtures.
                    • Electro-mechanical: war shafts, 歯車, and other motor parts.
                    • Cladding:コネクタ, プレート, build-up structural units.
                    • 機械: カム, シャフト, ツーリング, と機械.

                    5 Tips on Saving Money in Mild Steel Machining

                    Cost-saving considerations can be used at the beginning of the design process and machining so that less wastage occurs and turnaround time is faster.

                    1. Proper Grade Selection – Where possible, use free-machining types.
                    2. Belt Simplicity in Geometry – the potential of wasting machining time in Geometry.
                    3. Pod or Batch Production – Decreases (部位ごとに) set-up costs.
                    4. Use DFM Best Practices Early- Eliminates waste through trial and prototype.
                    5. Avoid excess finishing- Regular finishing is usually enough.

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                      Produce TOPS Precision Machined Mild Steel Parts

                      TOPS Precision incorporates a complete suite of CAD/CAM, 機械加工, 仕上げ, and inspection in a single location. We supply high-quality prototypes to full production volumes of mild steel parts to your application needs, 時間通りに, and on spec.

                      Send in your drawings now and have our engineers fully review them in terms of manufacturability and give you a quick price quote.

                      Our Service of Mild Steel Machining is Guaranteed

                      Each component is verified using a quality system ISO 9001. We will do the following:

                      • Strict tolerance parts as per your requirements
                      • Certification of material Traceable
                      • Timely on-time delivery, along with reporting of inspections
                      • Satisfaction guarantee and after-sales support

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                        よくある質問

                        あ: +/- 0.01mm on simple geometry; +/- 0.02-0.05mm on multi-feature part.

                        あ: はい, we do machine-grade materials such as 4140 in an optimum manner using favorable tooling and processes.

                        あ: はい, stress-relief, 硬化, 焼き戻し, など, and certified.

                        あ: はい, we can offer welding and fabrication on an as-required basis.

                        あ: について 5-7 days on prototypes, lead times on volumes vary.

                        あ: ステップ, IGES, STL, dwg, DXF- more of which can be contactable.

                        Let's Start A New Project Today

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