Apprenticeships WM Lee Apprenticeships Are you looking for an exciting apprenticeship in foundry materials technology? Then William Lee want to hear from you! Our apprenticeships offer a great opportunity to learn and understand the science behind the production of complex iron castings. On completion of your apprenticeship the industry offers a rewarding career with professional engineering qualifications. Come along to find out more about the foundry technology apprenticeships we have on offer. We currently have 4 apprenticeships available, to find out more, email HR@wmlee.co.uk To enquire about one of our apprenticeships, email hr@wmlee.co.uk! Our Current Apprentice's Ben started with WmLee in 2017 as an apprentice in our Pattern Shop. Ben is undertaking his apprenticeship in partnership with Sheffield College completing his Level 3 Engineering Qualification through weekly day release. As a William Lee employee, Ben is paid to learn technical pattern and tool making skills and gain experience from working with skilled and experienced pattern makers. Ben Oldfield Pattern Shop Edward and Sam are our engineering apprentices undertaking their mechanical and electrical engineering qualifications through the Advanced Manufacturing Research Centre (AMRC), Sheffield University. Our apprentices worked alongside our experienced engineering team before joining AMRC, a world leading manufacturing research and training facility. Following their initial training in 2018, Edward and Sam will return to us to complete the second and third year of their apprenticeship with continued assessment from AMRC. Edward & Sam Mechanical & Electrical Engineers FOLLOW US ON OUR SOCIAL PLATFORMS © 2021 WM Lee We'll assume you're ok with this, however, if not, please close this webpage. Accept Read More Translate »

Guidance for Designers Casting Tolerances Castings tolerances are dependent on both the materials cast and the method of production used. General Tolerances for metal alloy castings are specified by the International Standards Organization, in their Standard ISO 8062 for SG (and Malleable) Iron castings, made in machine produced sand moulds. The appropriate grades are Casting Tolerance (CT) 8 to 12. The capability of our green sand plants enables us to offer castings conforming to Grade CT8. Castings produced in Hand or Airset moulds will conform to grade CT9. These 2 grades are detailed in the table below: Raw Casting Basic (mm) Total Tolerance (mm) Over Up to and including CT8 CT9 – 10 1.0 1.5 10 16 1.1 1.6 16 25 1.2 1.7 25 40 1.3 1.8 40 63 1.4 2.0 63 100 1.6 2.2 100 160 1.8 2.5 160 250 2.0 2.8 250 400 2.2 3.2 400 630 2.6 3.6 Mismatch (not to be added to values above) 0.7 1.0 FOLLOW US ON OUR SOCIAL PLATFORMS © 2021 WM Lee We'll assume you're ok with this, however, if not, please close this webpage. Translate »