Boring

Type of technology

Machining (by means of tools with defined geometry)

Development phase

advanced

Level of innovation

Scale of production

batch, unit

Technology readiness level TRL

Description of the technology

Purpose of use

subtractive manufacturing of internal surfaces in axisymmetric components (e.g. internal re-dimensioning, production of bush grooves), production of internal threads, fine machining of holes

Use in industry

all industries

General characteristics

Boring is a machining process that involves the subtractive manufacturing of internal surfaces in axisymmetric components or holes using cutting tools known as boring bars or boring tools. During boring, the primary (rotary) motion is performed by the workpiece (boring bar machining) or by the cutting tool (boring tool machining), and the feed motion is performed by the cutting tool.

Alternative technologies
  • reaming
  • broaching
  • grinding

Visualisation

Advantages and disadvantages

Advantages

  • versatile technique for the subtractive manufacturing of internal surfaces in axisymmetric components

Disadvantages

  • use of machining fluids that are not inert to people and the environment
  • significant tooling and fixture costs
  • possibility of significant electricity costs (roughing)

Workpiece material types

  • all material groups
  • ferrous metals
  • non-ferrous metals
  • non-ferrous metals alloys
  • hard materials
  • hardened materials

Examples of products

  • crankshafts
  • camshafts
  • pipes
  • bolts
  • threaded shafts

Implementation of technology

Required resources

  • lathe
  • milling or boring machine
  • cutting tools
  • tooling
  • machining fluids (optional)

Required competences

  • training in machining and programming of CNC machines

Environmental aspects

Water consumption

Energy consumption

Waste generated

Expert evaluation

Competitiveness

Usability

Environmental impact

Development centers

  • West Pomeranian University of Technology
  • University of Zielona Góra
  • Poznan University of Technology
  • Opole University of Technology
  • Gdańsk University of Technology

Legal conditions

  • none

Companies using technology

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