{
  "sections": [
    {
      "h2": "Introduction to shaft machining",
      "h3s": [
        "What is shaft machining?",
        "Why is precision important in shaft machining?",
        "Overview of common shaft machining processes"
      ]
    },
    {
      "h2": "Key shaft machining techniques for optimal performance",
      "h3s": [
        "CNC turning: An overview of the process",
        "Milling techniques in shaft machining",
        "Boring for precision hole-making",
        "Broaching: A method for complex shapes",
        "Understanding die casting in shaft fabrication"
      ]
    },
    {
      "h2": "Materials used in shaft machining",
      "h3s": [
        "Stainless steel: Benefits and applications",
        "Brass in shaft machining: Characteristics and uses",
        "Choosing the right steel for your project"
      ]
    },
    {
      "h2": "Challenges in shaft machining and solutions",
      "h3s": [
        "How to address machining tolerances?",
        "Dealing with torque and its impact on shaft design",
        "Optimizing the supply chain for machining services"
      ]
    },
    {
      "h2": "Frequently Asked Questions",
      "h3s": [
        "What are the common machining processes for shafts?",
        "How can custom shaft machining meet specific project needs?",
        "What factors influence the cost of shaft machining services?"
      ]
    }
  ]
}