Guide 05 of 10

Tools for cost engineering

These are the tools cost engineers use today, from software that estimates what a part should cost to scanners that can see inside a competitor’s product. They can turn weeks of work into hours.

By Avinash Bhosale · Updated · 3 min read

01

AI Should-Cost Modelling

Costing software such as aPriori, Tset or Siemens Teamcenter Product Cost Management reads a 3D CAD model, simulates how the part would be made, and estimates the cycle time, tooling and piece cost in different regions, all before any supplier quotes.

From CAD model to cost estimate in minutes
02

Cleansheet Cost Models

A cost model built up from the bottom: material weight, cycle times, machine rates, labour and a fair margin. Every figure can be seen and checked, which makes it the basis for any serious negotiation.

Negotiate with facts, not percentages
03

CT-Scan & 3D Teardown

Industrial CT scanning and 3D scanning let you look inside a competitor’s product without taking it apart. You can see wall thicknesses, hidden joints, weld quality and how it’s put together, and build a full digital parts list.

See inside a competitor’s product
04

Spend Analytics & Cost Cubes

Combine your purchasing data with your parts lists to find the same part being bought at different prices across plants, programmes and suppliers. It’s usually the quickest saving you’ll find.

The same part should cost the same everywhere
05

Generative Design & Topology Optimisation

Software tries thousands of shapes against the loads and manufacturing limits you set, and finds designs that use as little material as possible, often shapes a person wouldn’t think to draw.

The software suggests, the engineers check
06

Additive Manufacturing

3D printing can combine dozens of parts into one, make small batches without tooling, produce moulds with cooling channels that follow the part’s shape, and turn out working prototypes quickly for VE trials.

Complex shapes cost no more to make
07

Digital Twin & CAE-Driven Margin Removal

When a design has been checked by simulation, you can remove extra safety margins with confidence. Virtual experiments also replace costly physical trials when you’re testing a new material or process.

Test it on screen, save it in production
08

LLM Copilots & Cost Knowledge Graphs

AI language models can search warranty reports, quotes, standards and past VE ideas. Knowledge graphs link functions, parts, costs and suppliers together, so lessons from past studies aren’t lost.

Your company’s experience, easy to find

What goes into a should-cost

A supplier’s quote is a single number. A should-cost model breaks it into seven parts, each worked out from engineering facts and market rates, and each one something you can discuss separately with the supplier.

Raw material: 32%Weight × market price ÷ yield. Check it against commodity price indices and link it to an index in the contract.
Process & machine: 24%Cycle time × machine-hour rate. Question the cycle times using engineering calculations, and compare rates with others in the same region.
Direct labour: 12%Operators per machine × local wage. How much is automated is the part you can negotiate.
Scrap & yield: 4%Assumptions about how many parts come out right first time can hide money, so ask for the real OEE figures.
Overhead: 14%This depends on how busy the plant is. A supplier running at 60% capacity is charging you for machines standing idle.
SG&A: 8%Sales, admin and engineering costs. Compare them across your suppliers and negotiate down any that stand out.
Margin: 6%A fair profit the supplier can live on. Being open works better than squeezing, and anything above it can be shared through a gain-share deal.

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