Postgraduate Diploma in Roughness, Form and Waviness: Measurement and Control
Online 800-hour Postgraduate Diploma in Roughness, Form and Waviness: Measurement and Control. 8 modules covering ISO 21920-2 (surface texture: profile, parameters), ISO 25178-2 (surface texture: areal) and MountainsMap. Assigned tutor and enrolment open.
Postgraduate Diploma in Roughness, Form and Waviness: Measurement and Control — studying from New Zealand
Vehicle restoration and classic engine work in New Zealand is supported by an active enthusiast community and a well-established network of specialist workshops, particularly around the main centres. Historic vehicle registration and compliance fall under the New Zealand Transport Agency Waka Kotahi, and the Vintage Car Club of New Zealand promotes preservation of historic vehicles. Restoration professionals often combine fabrication, engineering and heritage conservation skills.
Fees for New Zealand: NZ$2,160 (New Zealand dollar), with instalments and employer sponsorship available.
Relevant bodies in New Zealand
Typical roles
Questions from New Zealand
Is restoration engineering recognised by a professional body in New Zealand?
There is no specific statutory register for classic vehicle or heritage restoration engineers in New Zealand. Heritage matters can involve Heritage New Zealand Pouhere Taonga, and vehicle roadworthiness is governed by the NZ Transport Agency Waka Kotahi. SEIUM's qualifications are private and not accredited by any national body, so their value depends on the employer or client.
Where do classic restoration specialists work in New Zealand?
Work is found in independent restoration workshops, classic car dealers, museums, and specialist fabrication businesses, many clustered around the main centres. Clients and employers usually judge by workmanship and a portfolio of completed restorations. A private qualification may complement that evidence but is rarely a deciding factor on its own.
Can I study this while running or working in a workshop here?
Yes. The course is fully online and taught in English, so you can study from home in New Zealand without a student visa. Specialist courses total 300 hours, postgraduate diplomas 800 hours and master's programmes 1,900 hours. An assigned technical tutor supports you, and fees can be paid in instalments.
Take the controls.
Run a real engineering trade-off from this field. Move the sliders, watch the model react in real time and beat the challenge.
What you will be able to do
Distinguish roughness, waviness and form in surface texture.
Apply profile filters and select the appropriate cut-off lengths.
Calculate and interpret profile parameters such as Ra, Rz and Rmr.
Measure surfaces in 3D and analyse areal parameters.
Evaluate form, roundness and cylindricity errors.
Statistically control surface finishing processes.
Specify texture on drawings and estimate measurement uncertainty.
Who it's for
- Surface metrologist who wants to specialise in Roughness, Form and Waviness: Measurement and Control.
- Metrology laboratory technician who wants to specialise in Roughness, Form and Waviness: Measurement and Control.
- Machining process engineer who wants to specialise in Roughness, Form and Waviness: Measurement and Control.
- Quality engineer who wants to specialise in Roughness, Form and Waviness: Measurement and Control.
- Surface finishing specialist who wants to specialise in Roughness, Form and Waviness: Measurement and Control.
- Process control manager who wants to specialise in Roughness, Form and Waviness: Measurement and Control.
- Graduates in engineering or science looking to enter the automotive sector.
What you'll work with
- ISO 21920-2 (surface texture: profile, parameters)
- ISO 25178-2 (surface texture: areal)
- ISO 16610 (filtering)
- ISO 4287 (profile parameters)
- ISO 12181 (roundness)
- ISO 1302 (indication of surface texture)
- ISO 1101 (form tolerances)
8 modules · 800 h
1.1Real, nominal and measured surface1.2Roughness, waviness and form1.3Origin of texture in each process1.4Surface function: sealing, wear and fatigue1.5Wavelength and scales of analysis1.6GPS standards for surface texture1.7Transition from ISO 4287 to ISO 219201.8Indication on drawings according to ISO 21920-11.9Classic component surfaces and their original finish1.10Laboratory: visual and tactile comparison of reference samples
2.1Gaussian filter according to ISO 16610-212.2Cut-off length λc and λs2.3Evaluation and sampling length2.4Amplitude parameters: Ra, Rq, Rz and Rt2.5Spacing and hybrid parameters2.6Abbott-Firestone curve and Rk2.7Waviness parameters W2.8Primary profile P2.9The 16% rule and the maximum rule2.10Practice: calculating parameters on a real profile
3.1Stylus roughness testers: principle and skid3.2Tip radius and measuring force3.3Contour profilometers3.4Calibration with ISO 5436 standards3.5Common measurement errors3.6Portable roughness testers in the workshop3.7Measurement in cylinders and bores3.8Equipment maintenance3.9Instrument selection3.10Laboratory: measuring Ra and Rz on a crankshaft
4.1ISO 25178 areal parameters: Sa, Sq and Sz4.2White light interferometry4.3Confocal microscopy and focus variation4.4Non-contact surface scanners4.5S, L and F filters on surfaces4.6Motif analysis and functional textures4.7Honed cylinder surfaces4.8Comparison between profile and area4.9Areal analysis software4.10Practice: areal analysis of a liner honing finish
5.1Form errors: flatness, roundness and cylindricity5.2Roundness measuring machines and rotary tables5.3Filtering of per-revolution waviness5.4Flatness with interferometry and straightedges5.5Straightness and alignment of beds5.6Evaluation by minimum zone and least squares5.7Ovality and lobing in machining5.8Form on sealing surfaces5.9Relationship between form and assembly5.10Workshop: measuring the roundness of a main bearing journal
6.1Influence of cutting parameters on roughness6.2Grinding and its texture6.3Lapping and superfinishing6.4Plateau honing of cylinders6.5Shot peening and blasting6.6Polishing and electropolishing6.7Roughness on additive manufactured parts6.8Statistical control of roughness6.9Corrective actions in the process6.10Case study: correcting the honing of an engine block
7.1Sources of uncertainty in roughness7.2Uncertainty budget7.3Conformity rules7.4Functional specification of surfaces7.5Roughness tolerances on legacy drawings7.6Equivalences with historical standards7.7Communication with suppliers7.8Surface measurement reports7.9Specification audit7.10Practice: reviewing the specifications of a cylinder head drawing
8.1Selection of parts and functions8.2Analysis of specifications8.3Roughness measurement plan8.4Measurement of form and waviness8.5Areal analysis of critical surfaces8.6Uncertainty budget8.7Process improvement proposals8.8Technical control report8.9Dissertation and presentation8.10Final review with the tutor
How you'll learn
100% online training on the SEIUM campus, with downloadable material, recorded classes and an assigned technical tutor. No fixed timetables: students progress at their own pace within the intake, which makes it possible to combine study with work.
Each module combines theory, guided reading of the original standard and applied exercises. The working software is MountainsMap, Gwyddion, MATLAB, Minitab, in free, academic or evaluation versions. Tests are studied using real procedures for stylus roughness testers, confocal optical profilometry and roundness measurement. Assessment is continuous per module plus the final integrating project.
Build it end to end
Your final project follows the real engineering workflow, step by step, reviewed by your tutor.
Distinguish roughness, waviness and form in surface texture.
Apply profile filters and select the appropriate cut-off lengths.
Calculate and interpret profile parameters such as Ra, Rz and Rmr.
Measure surfaces in 3D and analyse areal parameters.
Evaluate form, roundness and cylindricity errors.
Where this takes you
Requirements
- Prior technical training or professional experience in the sector. A university degree is not required.
- Internet connection and a computer capable of running the programme's software.
- Sufficient Spanish level to follow technical standards documentation.
Ready to start?
Send your application today. Our admissions team replies within 72 hours with your study plan and funding options.
Frequently asked questions
The programme totals 800 hours spread over 6 to 8 months. That is between 10 and 15 hours per week on average, compatible with a full-time job.
The programme uses MountainsMap, Gwyddion, MATLAB and Minitab. Free, academic or evaluation versions are used, and the tutor indicates the free alternative where one exists.
An SEIUM in-house diploma upon passing the continuous assessment and the integrating project. It is in-house training, not an official Ministry qualification.
Yes. Modules passed in a Course or Postgraduate Diploma in the same area are recognised towards the advanced programme. Check the recognition policy when you enrol.
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