When it comes to custom stainless steel bolt production, Heatfastener’s rich custom screw manufacturer experience really shows. We are going to introduce how to make 1 piece custom made stainless steel bolt here.
Custom stainless steel bolts are the parts of custom fasteners.
If you are a beginner in custom fastener fields, you will become an expert through this blog.
Let’s keep reading.
Before I share the advanced production process of custom stainless steel bolts for you, you might have a quick look at the following info graphic.
1. Custom-made stainless steel bolt drawing design and analysis
Whether your custom stainless steel bolt is accompanied with the 3D or 2D drawing, the dimensions you add on the technical drawing are the important part that Heatfastener factory engineers will verify.
It is recommended to dimension all important features in your drawings to avoid misunderstandings and mistakes.
Before confirming the order with clients, our professional team will check all drawings and requests with clients carefully again and again. You can guarantee zero production errors.
More information on adding dimensions to your drawing can be found in this detailed article from the Massachusetts Institute of Technology.
At Heatfastener, our priority is to provide a complete custom part and fastener engineering solution including full 2D and 3D design. Our engineering and design tools include a complete design solution including AutoCAD, Pro-E, and Solid works.
2. Preparation of raw materials of custom made stainless steel bolts
Heatfastener warehouse has powerful stainless steel materials in stock.
All the material we purchased passed SGS or TUV tests, they are top quality.
The chemical content and mechanical properties of the stainless steel material are in accordance with the international standard.
As you know, common raw stainless steel materials as below: 201, 301, 303, 304, 316L, 416, 17-7 PH, 2205, 2507, 904L and 254SMO super duplex grades are available.
Customized stainless steel bolts will be produced by customers’ detailed drawings. And we will prepare the materials of stainless steel bars or rods according to drawing specifications.
3. CNC machining and precision production
With over 16 years of rich experience and expertise in CNC machining services, Heatfastener provides a variety of precision CNC machining services including milling, turning, EDM, wire EDM and surface grinding.
With precision 3-, 4- and 5-axis CNC machining centers, combined with other advanced capabilities and our experienced team, we can handle all types of custom stainless steel bolts in metal and alloy materials.
Our experienced team of engineers can select the right tools, optimize tool paths to cut fast and achieve a good milling surface while maintaining tight tolerances.
We can provide all custom bolt stainless steel materials to meet your project needs.
4. Custom made stainless steel bolts quality control
Heatfastener expert team pays more attention to custom made stainless steel bolts quality support, supply scope, inspection, test standard, shipment packing and after-sales service.
Below are our custom stainless steel bolts quality control items:
- Tolerance, main dimension, surface, mechanical property inspection
- Torque coefficient, guaranteed load, hardness, wedge load, slip coefficient, tensile load, tensile strength, etc.
- Metallographic inspection and analysis (microstructure analysis, micro hardness test)
- Analysis of chemical composition of materials, non-destructive tests, stress tests
- Standard detection
5. Heat treatment of stainless steel bolts on request
Some heat treatments, such as annealing, soften stainless steel bolts, while others harden and strengthen them.
Annealing heat treatments are used to relieve residual stress, eliminate cold working and dissolve alloying or segregating elements and provide a more homogeneous material.
During quenching and tempering, stainless steel bolts are first heated to a temperature where their structure transforms to austenite and then quenched or quenched in water, oil or air to a temperature where the structure crystalline transforms into marten site.
We have some qualified experts who only handle heat treatments, so the quality of work done on their bolt products is of exceptional quality.
6. Stainless steel bolt cleaning on request
There are two main cleaning processes in the bolt industry: one is cleaning before heat treatment, mainly cleaning the residual cooling oil, coolant and anti-rust liquid and other accessories in the previous process.
The second is cleaning after heat treatment, mainly cleaning residual quenching oil after quenching.
According to the cleaning method and principle, it can be divided into: physical cleaning, chemical cleaning, etc.
1. Physical Cleaning: Physical cleaning refers to the use of various external mechanical forces and energy to crush, decompose and peel off the surface of the object, so as to achieve the cleaning effect. The most used methods are spraying, high pressure water jet, agitation, ultrasonic cleaning, etc.
2. Chemical cleaning: Chemical cleaning refers to the use of one or more chemical agents or other aqueous solutions to chemically transform, dissolve, and peel off the contaminants on the surface of the object with the help of cleaning agents to achieve the cleaning effect. . Common cleaning methods include alkaline water cleaning, solvent cleaning, etc.
