Tooling samples have generally been molded and cannot be directly used for sales. They are only used by suppliers and car manufacturers for some trial assembly and verification.

Tooling samples (OTS) are in the second half of the design stage during the product development process. After the DV stage, since the designed parts have basically been determined, OTS is mainly used to evaluate performance, manufacturing feasibility and quality feasibility. The purpose is to verify the hard tooling capabilities of mass production parts suppliers (mainly molds and fixtures) ), but the production cycle time is not taken into consideration. ?OTS parts refer to samples produced by tooling molds for full formal production, so soft mold parts do not belong to OTS parts. . OTS is usually approved by the engineering department.

Then there will be a first batch of PVS samples (PVS: production trial batch) mainly to evaluate the production rhythm and product batch stability. PVS is the responsibility of the quality department.

The next step is the 2TP/2-day trial production acceptance, which is mainly to verify the supplier's batch supply capability. OS (zero batch) is a general exercise before mass production and a comprehensive verification of mass production; the next step is SOP, which means formal order and mass production.

OTS off tooling samples, samples made with the same tooling as mass production, that is, "tooling samples".

It must be a tooling that will be used in mass production in the future, but the operator, location, etc. when making tooling samples can be different from those in mass production. OTS is a prototype manufactured under off-beat production conditions in a fully tooled state. The order of new product development is Prototype ---OTS---PPAP---SOP.

Reference materials? Baidu Encyclopedia: Automobile Production