Visual Inspection of Self-Pierce Riveting Systems for the Automotive Industry

0
0
2011 days ago, 825 views
PowerPoint PPT Presentation

Presentation Transcript

Slide 1

Visual Inspection of Self-Pierce Riveting Systems for the Automotive Industry By Paul Johnson (p.johnson1@ljmu.ac.uk) Supervisors: Dr Francis Lilley, Professor David Burton.

Slide 2

Self-Pierce Riveting Why SPR? SPR Problems Current Technology Problems Project Objectives Project Status Conclusions & Future Work An issue to tackle… (this implies you!) Overview

Slide 3

Mechanical joining process/aluminum Handheld, platform or robotized High speed, single operation, no prep Fully penetrate best materials & somewhat puncture base material Self-Pierce Riveting Joint creation prepare.

Slide 4

Self-Pierce Riveting A cross segment of an effective SPR joint. A semi-tubular bolt joining three sheets of aluminum . Enlivened Joint creation prepare. C-outline which suits the tooling.

Slide 5

Self-Pierce Riveting Doidge Type 120 Riveting Machine affect riveting machine semi-tubular, tubular, bifurcated steel, metal, copper, aluminum and light composite semi-tubular steel bolts 3.1mm distance across/7.4mm length aluminum review 1200 (BS1470: 1987) Doidge Type 120 Riveting Machine

Slide 6

Why SPR? lessen discharges lighter vehicles littler motors EU emanations regs order 70/220/EEC classification M 1 traveler vehicles 8 situate max EU Emissions Directive 70/220/EEC.

Slide 7

Why SPR? Conventional joining/steel body new light weight vehicles (partner) RSW is unfeasible for aluminum bring down resistance than steel expends more vitality because of warmth misfortune SPR is a feasible arrangement bring down influence utilization makes an air/water tight joint rapid no inclusion opening and material arrangement puncture and secure in one operation Spot weld machine. Test spot weld.

Slide 8

SPR Problems Poor joint get to/double get to C-outline, pass on, punch Quality control of the joint Predominantly dangerous (etching, pulling) Handheld ultrasonic test Physical Teardown One auto, ~5000 joints, two men, 30 days Time, cash, deferred quality control

Slide 9

Current Technology Driven by… expanded mechanization unique materials Decline of gifted/modest work constrain HENROB Ltd Industry pioneer for SPR frameworks BMW, Audi, Jaguar, Volvo, Chrysler, Mercedes, Freightliner and Hyundai.

Slide 10

SLIDES REMOVED FOR CONFIDENTIALITY

Slide 11

Project Status (Rivet Status) Applying camera to sense about bolt status : bespoke programming distinguishes light force obliges alignment to surrounding lighting pre-prepare investigation point power values choice Intensity profile of a missing bolt. Power profile of a solitary bolt. Power profile of a twofold bolt.

Slide 12

Project Status (Mat. Profundity) Applying camera and laser to distinguish material profundity physical channels picture handling recognizes laser stripe thickness in mm and px pre-prepare requires joint alignment focal point remove from material surrounding lighting/limit A 6mm pile of sheet aluminum. As above, with impartial thickness and red channels. Screenshot of the procedure checking programming. As above, with edge and laser line recognizable proof.

Slide 13

SLIDES REMOVED FOR CONFIDENTIALITY

Slide 14

Thank You!

SPONSORS