Tool Steel Selection Guidelines for High Volume Injection Moulding Tooling Baseline Fabrication
High-volume injection moulding baseline tooling demands martensitic stainless or pre-hardened steels matched to polymer abrasiveness and cycle volume.
Mold Amortisation
Meaning
Financial allocation of the initial cost of production tooling across the total volume of manufactured parts ensures that capital investment is recovered over the life of the project. Through mold amortisation, a moulder assigns a fixed tooling cost to every individual shot or unit. Such an accounting method helps in setting the piece price for the end customer.
Cost Recovery
Allocating the price of a tool requires an accurate forecast of the total parts to be produced over the contract duration. If the actual production volume is lower than the estimate, the manufacturer may fail to recover the full cost of the tool before it reaches the end of its useful life.
Production Volume
Higher production quantities reduce the per-part cost of the tooling, making mass production more economical than low-volume runs. When the mold amortisation is complete, the per-part price may drop since the capital cost has been fully satisfied. This change in pricing often occurs at a pre-negotiated milestone in the supply agreement.
Expense Distribution
Distribution of tooling costs to a specific capital budget or a per-piece surcharge affects the cash flow of both the supplier and the buyer. Most automotive and medical projects use a formal schedule to track the recovery of these funds. Decisions regarding whether to pay for tooling upfront or through a piece-price adder depend on the financial strategy of the purchasing organisation.
These agreements often specify the ownership of the asset once the final payment is made.