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Firstly, clarify the three machining conditions for selecting suitable deep hole drill bits (selection criteria)
Ordinary steel/cast iron: High speed steel (HSS) drill bits with low cost and sufficient toughness. Difficult to process materials (stainless steel, high-temperature alloys): cobalt containing high-speed steel or solid hard alloy drill bits, heat-resistant and wear-resistant.
Views：1 Post Date：2025-11-15 -
Functional optimization of scraping and rolling tool components
Scraping blade: Adopting a "negative rake angle+arc transition" design (rake angle -5 °~-10 °) to avoid chipping during cutting, while controlling the chip thickness (0.02-0.1mm) to ensure that the chips are in fragments rather than long strips, preventing clogging.
Views：1 Post Date：2025-11-15 -
The main function of deep hole guiding key
Balance radial cutting force: counteract the lateral offset force generated during drilling, prevent the drill bit from drifting, guide the tool feed: ensure that the tool advances in a straight line along the predetermined axis, and improve the straightness of the hole (error ≤ 0.03mm/m)
Views：1 Post Date：2025-11-15
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