Release time：2020-01-16 18:44 Browse：
Hexagonal screws and hexagonal head bolts are indispensable fasteners in machinery manufacturing, automotive, aerospace and other fields, and their design, processing and use have been concerned. Starting with the characteristics of the outer hexagon and hexagon head, this article will explore why trimming of these components is necessary in some cases and not in others, and analyze the respective use cases and advantages.
First, the characteristics of the outer hexagon and the hexagonal head
Outer hex screws: Outer hex screws, also known as outer hex bolts or outer hex screws, are characterized by six equally divided corners of their heads. This design not only increases the surface area and improves the efficiency of force transfer, but also enables the wrench or wrench head to be tightly attached to the workpiece, achieving uniform tightening and preventing sliding. Outer hexagonal screws are widely used in occasions requiring high strength connection and fastening, such as automobile manufacturing, heavy machinery, building structures, etc.
Hexagonal head bolt: The head of the hexagonal head bolt is also hexagonal, but according to the specific application scenario, it can be divided into ordinary hexagonal head, high strength hexagonal head, shaft hexagonal head and long hexagonal screw and other types. Hexagonal head bolts play an important role in the connection of various mechanical equipment and structures because of their strong bearing capacity, easy tightening and anti-sliding characteristics. Its international and domestic standards (such as ISO4014, ISO4017, GB, TB, JB, etc.) ensure the interchangeability and versatility of products.
Second, cutting and non-cutting considerations
Edging treatment: Edging refers to the process of trimming the edge of the formed part to achieve a neat or specific shape. In the processing of outer hex screws and hex head bolts, trimming is usually done for the following considerations:
1. Aesthetics: the edges of the parts after cutting are flat and without burrs, which improves the overall aesthetics of the product. This is particularly important in occasions that require a delicate appearance, such as wooden furniture, doors and Windows in home decoration.
2. Dimensional accuracy: the cutting edge can precisely control the size of the parts to ensure the match with the connecting parts and improve the accuracy and efficiency of the assembly.
3. Functional requirements: In some specific application scenarios, trimming becomes necessary when you need to insert small Spaces or precisely interconnect with other components.
Without cutting: Without cutting, the original edge state of the part is retained, and this treatment is usually suitable for the following scenarios:
1. Cost consideration: not cutting edges can reduce processing processes and reduce production costs, which is especially suitable for products that are mass-produced and have low edge requirements.
2. Special performance requirements: In some cases, retaining the original edge may be conducive to enhancing some properties of the part, such as improving wear resistance, corrosion resistance, etc.
3. Reserve processing allowance: In some cases that require subsequent processing or adjustment, sufficient processing allowance can be reserved without cutting edges to facilitate subsequent operations.
3. Use scenarios and advantages
Use scenario of outer hexagonal screws:
Automobile manufacturing: Because of its high temperature resistance, corrosion resistance and excellent mechanical properties, the outer hexagonal screw is widely used in the engine, chassis, suspension system and other key parts of the automobile to ensure the stability and safety of the vehicle.
Mechanical manufacturing: In mechanical equipment, outer hexagonal screws are used to fix various components, such as gear boxes, bearing seats, etc., to ensure the normal operation and accuracy requirements of the equipment.
Home decoration: In the building structure, the outer hexagonal screws are used to fix the beams and columns, steel structure, etc., but also for the decoration of wooden furniture, doors and Windows, etc., both to meet the functional needs and take into account the aesthetic.
Usage scenario of hexagon head bolts:
High-strength connections: High-strength hexagonal head bolts are used in situations requiring high-reliability connections, such as Bridges and large mechanical equipment, due to their excellent load carrying capacity and shear strength.
Precision assembly: shaft hexagon head bolts and long hexagon screws, due to their special design, are suitable for connecting parts with shaft holes or connecting parts far away to ensure the accuracy and stability of assembly.
Advantages of cut and uncut edges:
Edge cutting advantages: improve product aesthetics, accurately control size, and meet specific functional requirements.
Advantages of non-trimming: reduce cost, retain original performance, and reserve processing allowance.
To sum up, the cutting edge of the outer hex screws and hex head bolts depends on the specific use scenario and performance requirements. In practical applications, the most appropriate processing method should be selected according to the functional requirements, cost considerations and aesthetic factors of the product. At the same time, with the continuous progress of processing technology and the improvement of automation, the processing of external hexagonal screws and hexagonal head bolts will be more efficient, accurate and flexible in the future.
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